diff --git a/FS25_ADSmartPickup/adSources.lua b/FS25_ADSmartPickup/adSources.lua
index 4a332d8..e61ac47 100644
--- a/FS25_ADSmartPickup/adSources.lua
+++ b/FS25_ADSmartPickup/adSources.lua
@@ -624,6 +624,92 @@ function ADSources.getFarmDemand(adEnv, fillType, farmId, excludedPlaceables)
     return {liters = total, consumers = consumers}
 end
 
+-- ---- forbrug og produktion pr. døgn (fanen Lagre) ----
+
+local function addRate(rates, fillType, field, liters)
+    if fillType == nil or liters == nil or liters <= 0 then return end
+    rates[fillType] = rates[fillType] or {consumption = 0, production = 0}
+    rates[fillType][field] = rates[fillType][field] + liters
+end
+
+local function addFactoryRates(rates, placeable)
+    local productionPoint = getProductionPoint(placeable)
+    for _, production in ipairs(productionPoint ~= nil and productionPoint.productions or {}) do
+        if isProductionWanted(productionPoint, production) then
+            local perDay = (production.cyclesPerMinute or ((production.cyclesPerHour or 0) / 60)) * 1440
+            for _, input in ipairs(production.inputs or {}) do addRate(rates, input.type, "consumption", (input.amount or 0) * perDay) end
+            for _, output in ipairs(production.outputs or {}) do addRate(rates, output.type, "production", (output.amount or 0) * perDay) end
+        end
+    end
+end
+
+local function getFoodWeights(placeable)
+    local foodSpec = placeable.spec_husbandryFood
+    local system = g_currentMission ~= nil and g_currentMission.animalFoodSystem or nil
+    local weights = {}
+    local food = system ~= nil and system.getAnimalFood ~= nil and foodSpec ~= nil and system:getAnimalFood(foodSpec.animalTypeIndex) or nil
+    for _, group in pairs(food ~= nil and food.groups or {}) do
+        local weight = tonumber(group.productionWeight) or tonumber(group.eatWeight) or 1
+        for _, fillType in pairs(group.fillTypes or {}) do weights[fillType] = math.max(weights[fillType] or 0, weight) end
+    end
+    return weights
+end
+
+local function addHusbandryRates(rates, placeable)
+    local food, straw, water = placeable.spec_husbandryFood, placeable.spec_husbandryStraw, placeable.spec_husbandryWater
+    local byName = function(name) return g_fillTypeManager ~= nil and g_fillTypeManager.getFillTypeIndexByName ~= nil and g_fillTypeManager:getFillTypeIndexByName(name) or nil end
+    local nameToIndex = function(name)
+        local index = byName(name)
+        if index == nil and g_fillTypeManager ~= nil then
+            for i = 1, 256 do if g_fillTypeManager:getFillTypeNameByIndex(i) == name then return i end end
+        end
+        return index
+    end
+    if food ~= nil and (food.litersPerHour or 0) > 0 then
+        for fillType, liters in pairs(ADStorageStats.splitTroughConsumption(food.litersPerHour * 24, food.fillLevels, getFoodWeights(placeable))) do
+            addRate(rates, fillType, "consumption", liters)
+        end
+    end
+    if straw ~= nil and (straw.inputLitersPerHour or 0) > 0 then
+        addRate(rates, nameToIndex("STRAW"), "consumption", straw.inputLitersPerHour * 24)
+    end
+    if water ~= nil and not water.automaticWaterSupply and (water.litersPerHour or 0) > 0 then
+        addRate(rates, nameToIndex("WATER"), "consumption", water.litersPerHour * 24)
+    end
+end
+
+-- {[fillType] = {consumption, production}} i liter pr. døgn for gårdens fabrikker og stalde.
+function ADSources.getFarmRates(adEnv, farmId)
+    local placeables = g_currentMission ~= nil and g_currentMission.placeableSystem ~= nil and g_currentMission.placeableSystem.placeables or {}
+    local rates = {}
+    for _, placeable in pairs(placeables) do
+        if isOwnedBy(placeable, farmId) then
+            if getProductionPoint(placeable) ~= nil then
+                addFactoryRates(rates, placeable)
+            elseif placeable.getHusbandryFillLevel ~= nil then
+                addHusbandryRates(rates, placeable)
+            end
+        end
+    end
+    return rates
+end
+
+-- Bedste pris lige nu blandt alle spillets salgssteder der tager varen (uanset markør/vejnet):
+-- {price, top} pr. liter; top = prisen ved årets højeste periode. nil når ingen tager varen.
+function ADSources.getMarketQuote(fillType)
+    local storage = g_currentMission ~= nil and g_currentMission.storageSystem or nil
+    local best = nil
+    for _, station in pairs(storage ~= nil and storage:getUnloadingStations() or {}) do
+        if ADPrices.isSellingStation(station) and ADSources.stationAccepts(station, fillType) then
+            local quote = ADPrices.getQuote(station, fillType)
+            if quote ~= nil and (best == nil or quote.price > best.price) then
+                best = {price = quote.price, top = quote.top}
+            end
+        end
+    end
+    return best
+end
+
 -- ---- inventar: alt gården har liggende, pr. bygning ----
 
 local function addEntry(entries, fillType, level, capacity, extra)
diff --git a/FS25_ADSmartPickup/adStorageStats.lua b/FS25_ADSmartPickup/adStorageStats.lua
new file mode 100644
index 0000000..a457a07
--- /dev/null
+++ b/FS25_ADSmartPickup/adStorageStats.lua
@@ -0,0 +1,67 @@
+-- AD Storage Stats
+-- Rene beregninger (ingen spil-API) til fanen Lagre: pr. vare i en bygning fyldning, værdi nu og
+-- ved årets toppris, gårdens samlede beholdning og hvor mange døgn den rækker ved gårdens forbrug.
+
+ADStorageStats = {}
+
+-- item = {fillType, level, capacity}; farmTotal = liter af varen på hele gården;
+-- rate = {consumption, production} liter pr. døgn (eller nil); quote = {price, top} pr. liter (eller nil).
+function ADStorageStats.itemStats(item, farmTotal, rate, quote)
+    local level = item.level or 0
+    local capacity = item.capacity or 0
+    local consumption = rate ~= nil and rate.consumption or 0
+    local production = rate ~= nil and rate.production or 0
+    return {
+        fillType = item.fillType,
+        level = level,
+        capacity = capacity,
+        percent = capacity > 0 and math.floor(100 * level / capacity + 0.5) or nil,
+        valueNow = quote ~= nil and quote.price ~= nil and math.floor(level * quote.price + 0.5) or nil,
+        valueTop = quote ~= nil and quote.top ~= nil and math.floor(level * quote.top + 0.5) or nil,
+        farmTotal = farmTotal or level,
+        consumption = consumption,
+        production = production,
+        net = production - consumption,
+        days = consumption > 0 and (farmTotal or level) / consumption or nil,
+    }
+end
+
+function ADStorageStats.buildingTotals(stats)
+    local now, top = 0, 0
+    for _, stat in ipairs(stats) do
+        now = now + (stat.valueNow or 0)
+        top = top + (stat.valueTop or 0)
+    end
+    return {valueNow = now, valueTop = top}
+end
+
+-- inventory = { {entries = {{fillType, level}}} } -> {[fillType] = liter}
+function ADStorageStats.farmTotals(inventory)
+    local totals = {}
+    for _, building in ipairs(inventory or {}) do
+        for _, entry in ipairs(building.entries or {}) do
+            totals[entry.fillType] = (totals[entry.fillType] or 0) + (entry.level or 0)
+        end
+    end
+    return totals
+end
+
+-- Et stald-trug æder `perDay` liter i alt; fordel på fodertyperne efter hvad truget indeholder.
+-- Tomt trug: alt på foderet med højest vægt (det der hentes først).
+function ADStorageStats.splitTroughConsumption(perDay, levels, weights)
+    local total = 0
+    for _, level in pairs(levels or {}) do total = total + (level or 0) end
+    local result = {}
+    if total > 0 then
+        for fillType, level in pairs(levels) do
+            if (level or 0) > 0 then result[fillType] = perDay * level / total end
+        end
+        return result
+    end
+    local best, bestWeight = nil, -1
+    for fillType, weight in pairs(weights or {}) do
+        if weight > bestWeight or (weight == bestWeight and fillType < best) then best, bestWeight = fillType, weight end
+    end
+    if best ~= nil then result[best] = perDay end
+    return result
+end
diff --git a/FS25_ADSmartPickup/gui/SmartPickupFrame.lua b/FS25_ADSmartPickup/gui/SmartPickupFrame.lua
index 5385b81..7f1d091 100644
--- a/FS25_ADSmartPickup/gui/SmartPickupFrame.lua
+++ b/FS25_ADSmartPickup/gui/SmartPickupFrame.lua
@@ -288,6 +288,7 @@ function SmartPickupFrame:clearRows()
     self.overviewRows = {}
     self.productRows, self.outboundStatusRows = {}, {}
     self.storageRows = {}
+    self.storageDetailRows = {}
     self.boardRows = {}
     self.ingredientModeRowOption, self.collectRoundRowOption, self.directionRowOption = nil, nil, nil
 end
diff --git a/FS25_ADSmartPickup/gui/SmartPickupOutboundTab.lua b/FS25_ADSmartPickup/gui/SmartPickupOutboundTab.lua
index b365c24..6c33959 100644
--- a/FS25_ADSmartPickup/gui/SmartPickupOutboundTab.lua
+++ b/FS25_ADSmartPickup/gui/SmartPickupOutboundTab.lua
@@ -178,6 +178,10 @@ function SmartPickupFrame:onClickSource(state, element)
 end
 
 function SmartPickupFrame:onClickProduct(state, element)
+    local clicked = self.rowData[element]
+    if clicked ~= nil and clicked.kind == "storageBuilding" then
+        return self:safe(function(frame) frame:onClickStorageBuilding(state) end)
+    end
     self:safe(function(frame)
         local run, data = frame:getRun(), frame.rowData[element]
         if run == nil or data == nil or data.kind ~= "product" then return end
diff --git a/FS25_ADSmartPickup/gui/SmartPickupStorageTab.lua b/FS25_ADSmartPickup/gui/SmartPickupStorageTab.lua
index 02472f3..8a6b018 100644
--- a/FS25_ADSmartPickup/gui/SmartPickupStorageTab.lua
+++ b/FS25_ADSmartPickup/gui/SmartPickupStorageTab.lua
@@ -26,10 +26,114 @@ function SmartPickupFrame:getInventory(adEnv)
     return ADSources.getFarmInventory(adEnv, g_currentMission:getFarmId())
 end
 
+-- ---- detaljer for den valgte bygning ----
+
+function SmartPickupFrame.formatMoney(value)
+    if value == nil then return "-" end
+    if g_i18n ~= nil and g_i18n.formatMoney ~= nil then
+        local ok, text = pcall(g_i18n.formatMoney, g_i18n, value, 0, true, true)
+        if ok and text ~= nil then return text end
+    end
+    return string.format("%d", math.floor(value + 0.5))
+end
+
+function SmartPickupFrame:fillTypeTitle(fillType)
+    local title = g_fillTypeManager.getFillTypeTitleByIndex ~= nil and g_fillTypeManager:getFillTypeTitleByIndex(fillType) or nil
+    return tostring(title or g_fillTypeManager:getFillTypeNameByIndex(fillType))
+end
+
+-- Beregner stats for alle varer i bygningen (gårdens totaler og rater regnes én gang pr. opdatering).
+function SmartPickupFrame:computeBuildingStats(adEnv, entry, inventory)
+    local farmId = g_currentMission:getFarmId()
+    local totals = ADStorageStats.farmTotals(inventory)
+    local rates = ADSources.getFarmRates ~= nil and ADSources.getFarmRates(adEnv, farmId) or {}
+    local stats = {}
+    for _, item in ipairs(entry.entries) do
+        local quote = ADSources.getMarketQuote ~= nil and ADSources.getMarketQuote(item.fillType) or nil
+        table.insert(stats, ADStorageStats.itemStats(item, totals[item.fillType], rates[item.fillType], quote))
+    end
+    return stats
+end
+
+-- "Sukker — 150.0k/180.0k (83 %) · nu 240.300 kr · top 300.400 kr · gården 412.0k = 3.2 døgn · forbrug 130.0k/døgn · prod. 48.0k/døgn"
+function SmartPickupFrame:describeStat(stat)
+    local i18n = self.i18n
+    local fc = SmartPickupFrame.formatCompact
+    local parts = {string.format("%s — %s/%s%s", self:fillTypeTitle(stat.fillType), fc(stat.level), fc(stat.capacity), stat.percent ~= nil and string.format(" (%d %%)", stat.percent) or "")}
+    if stat.valueNow ~= nil then
+        table.insert(parts, string.format(i18n:getText("spu_stat_now"), SmartPickupFrame.formatMoney(stat.valueNow)))
+        table.insert(parts, string.format(i18n:getText("spu_stat_top"), SmartPickupFrame.formatMoney(stat.valueTop)))
+    else
+        table.insert(parts, i18n:getText("spu_stat_noSell"))
+    end
+    local days = stat.days ~= nil and string.format(i18n:getText("spu_stat_days"), stat.days) or i18n:getText("spu_stat_noUse")
+    table.insert(parts, string.format(i18n:getText("spu_stat_farm"), fc(stat.farmTotal), days))
+    if stat.consumption > 0 then table.insert(parts, string.format(i18n:getText("spu_stat_use"), fc(stat.consumption))) end
+    if stat.production > 0 then table.insert(parts, string.format(i18n:getText("spu_stat_prod"), fc(stat.production))) end
+    return "    " .. table.concat(parts, " · ")
+end
+
+function SmartPickupFrame:describeStatTotals(stats)
+    local totals = ADStorageStats.buildingTotals(stats)
+    return string.format("    " .. self.i18n:getText("spu_stat_total"), SmartPickupFrame.formatMoney(totals.valueNow), SmartPickupFrame.formatMoney(totals.valueTop))
+end
+
+-- Navne til vælgeren; ens navne (40 Farma-siloer) får løbenummer.
+function SmartPickupFrame:storageLabels(inventory)
+    local counts, seen, labels = {}, {}, {}
+    for _, entry in ipairs(inventory) do counts[entry.name] = (counts[entry.name] or 0) + 1 end
+    for index, entry in ipairs(inventory) do
+        seen[entry.name] = (seen[entry.name] or 0) + 1
+        labels[index] = counts[entry.name] > 1 and string.format("%s #%d", entry.name, seen[entry.name]) or entry.name
+    end
+    return labels
+end
+
+function SmartPickupFrame:fillStorageDetail(adEnv, inventory)
+    self.storageDetailRows = {}
+    if #inventory == 0 then
+        return
+    end
+    self.storageIndex = math.max(1, math.min(self.storageIndex or 1, #inventory))
+    local row = self:addRow(self.productPrefab, {kind = "storageBuilding"})
+    local option = row:getDescendantByName("option")
+    option:setTexts(self:storageLabels(inventory))
+    option:setState(self.storageIndex, false)
+    row:getDescendantByName("title"):setText(self.i18n:getText("spu_storage_select"))
+    local entry = inventory[self.storageIndex]
+    self.storageDetailPlaceable = entry.placeable
+    local stats = self:computeBuildingStats(adEnv, entry, inventory)
+    for _, stat in ipairs(stats) do
+        table.insert(self.storageDetailRows, self:addTextRow(self:describeStat(stat)))
+    end
+    table.insert(self.storageDetailRows, self:addTextRow(self:describeStatTotals(stats)))
+end
+
+function SmartPickupFrame:refreshStorageDetail(adEnv, inventory)
+    local entry = nil
+    for _, candidate in ipairs(inventory) do
+        if candidate.placeable == self.storageDetailPlaceable then entry = candidate end
+    end
+    if entry == nil or #(self.storageDetailRows or {}) ~= #entry.entries + 1 then
+        return
+    end
+    local stats = self:computeBuildingStats(adEnv, entry, inventory)
+    for index, stat in ipairs(stats) do
+        self.storageDetailRows[index]:setText(self:describeStat(stat))
+    end
+    self.storageDetailRows[#stats + 1]:setText(self:describeStatTotals(stats))
+end
+
+function SmartPickupFrame:onClickStorageBuilding(state)
+    self.storageIndex = state
+    self:requestRebuild()
+end
+
 function SmartPickupFrame:fillStorageRows(adEnv)
     self.storageRows = {}
-    self:addTextRow(self.i18n:getText("spu_section_storage"))
     local inventory = self:getInventory(adEnv)
+    self:fillStorageDetail(adEnv, inventory)
+    self:addTextRow(self.i18n:getText("spu_section_storage"))
     for _, entry in ipairs(inventory) do
         table.insert(self.storageRows, {placeable = entry.placeable, title = self:addTextRow(self:describeInventory(entry))})
     end
@@ -42,10 +146,12 @@ function SmartPickupFrame:refreshStorageRows(adEnv)
     if self.currentTab ~= SmartPickupFrame.TAB_STORAGE or #(self.storageRows or {}) == 0 then
         return
     end
+    local inventory = self:getInventory(adEnv)
     local byPlaceable = {}
-    for _, entry in ipairs(self:getInventory(adEnv)) do
+    for _, entry in ipairs(inventory) do
         byPlaceable[entry.placeable] = entry
     end
+    pcall(self.refreshStorageDetail, self, adEnv, inventory)
     for _, row in ipairs(self.storageRows) do
         local entry = byPlaceable[row.placeable]
         if entry ~= nil then
diff --git a/FS25_ADSmartPickup/l10n/l10n_da.xml b/FS25_ADSmartPickup/l10n/l10n_da.xml
index e751e91..b1a1387 100644
--- a/FS25_ADSmartPickup/l10n/l10n_da.xml
+++ b/FS25_ADSmartPickup/l10n/l10n_da.xml
@@ -124,5 +124,15 @@
         <text name="spu_noBuildings" text="Ingen bygninger fundet"/>
         <text name="spu_buildingGone" text="bygningen findes ikke længere"/>
         <text name="spu_reason_noMarker" text="'%s' mangler en AD-markør ved triggeren"/>
+        <text name="spu_storage_select" text="Vis bygning"/>
+        <text name="spu_stat_now" text="nu %s"/>
+        <text name="spu_stat_top" text="ved toppris %s"/>
+        <text name="spu_stat_noSell" text="intet salgssted"/>
+        <text name="spu_stat_days" text="%.1f døgn"/>
+        <text name="spu_stat_noUse" text="forbruges ikke"/>
+        <text name="spu_stat_farm" text="gården %s = %s"/>
+        <text name="spu_stat_use" text="forbrug %s/døgn"/>
+        <text name="spu_stat_prod" text="prod. %s/døgn"/>
+        <text name="spu_stat_total" text="Bygningens værdi: nu %s · ved toppris %s"/>
     </texts>
 </l10n>
diff --git a/FS25_ADSmartPickup/l10n/l10n_en.xml b/FS25_ADSmartPickup/l10n/l10n_en.xml
index c579027..4a4c3e8 100644
--- a/FS25_ADSmartPickup/l10n/l10n_en.xml
+++ b/FS25_ADSmartPickup/l10n/l10n_en.xml
@@ -124,5 +124,15 @@
         <text name="spu_noBuildings" text="No buildings found"/>
         <text name="spu_buildingGone" text="building no longer exists"/>
         <text name="spu_reason_noMarker" text="'%s' has no AD marker at its trigger"/>
+        <text name="spu_storage_select" text="Show building"/>
+        <text name="spu_stat_now" text="now %s"/>
+        <text name="spu_stat_top" text="at top price %s"/>
+        <text name="spu_stat_noSell" text="no selling point"/>
+        <text name="spu_stat_days" text="%.1f days"/>
+        <text name="spu_stat_noUse" text="not consumed"/>
+        <text name="spu_stat_farm" text="farm %s = %s"/>
+        <text name="spu_stat_use" text="use %s/day"/>
+        <text name="spu_stat_prod" text="prod. %s/day"/>
+        <text name="spu_stat_total" text="Building value: now %s · at top price %s"/>
     </texts>
 </l10n>
diff --git a/FS25_ADSmartPickup/modDesc.xml b/FS25_ADSmartPickup/modDesc.xml
index 534a112..e5efe2b 100644
--- a/FS25_ADSmartPickup/modDesc.xml
+++ b/FS25_ADSmartPickup/modDesc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <modDesc descVersion="107">
     <author>masterdraco</author>
-    <version>1.14.3.0</version>
+    <version>1.15.0.0</version>
     <title>
         <en>AD Smart Pickup</en>
     </title>
@@ -20,6 +20,7 @@
         <sourceFile filename="adWaitPool.lua"/>
         <sourceFile filename="adPrices.lua"/>
         <sourceFile filename="adOutboundPlanner.lua"/>
+        <sourceFile filename="adStorageStats.lua"/>
         <sourceFile filename="adSources.lua"/>
         <sourceFile filename="adBuildings.lua"/>
         <sourceFile filename="adOutbound.lua"/>
diff --git a/tests/test_adSources.lua b/tests/test_adSources.lua
index cef8805..23bf8b9 100644
--- a/tests/test_adSources.lua
+++ b/tests/test_adSources.lua
@@ -20,6 +20,7 @@ SellingStation = {}
 
 dofile("FS25_ADSmartPickup/adSupplyPlanner.lua")
 dofile("FS25_ADSmartPickup/adPrices.lua")
+dofile("FS25_ADSmartPickup/adStorageStats.lua")
 dofile("FS25_ADSmartPickup/adSources.lua")
 
 local failures = 0
@@ -383,5 +384,26 @@ check("S17 gylle-enden: gylle", slurryEnd[1].fillType, SLURRY)
 twoEndStation.loadTriggers[1].fillTypes = nil
 check("S17 uden punkt-varer: stationens varer", #ADSources.getProducts(adEnv, ADSources.identify(adEnv, 40, 1), 1), 2)
 
+-- S18: gårdens forbrug og produktion pr. døgn (fabrikker + stalde) og bedste markedspris
+tmrFactory.spec_productionPoint.productionPoint.getIsProductionEnabled = function(self, id) return id == "tmr3" end
+tmrFactory.spec_productionPoint.productionPoint.productions[1].outputs = {{type = FORAGE, amount = 240}}
+cowBarn.spec_husbandryWater.automaticWaterSupply = false
+local rates = ADSources.getFarmRates(adEnv, 1)
+-- TMR-fabrik: 45 l roer × 200/60 cyklus/min × 1440 = 216.000 l/døgn; TMR ud 240 × 200/60 × 1440 = 1.152.000
+check("S18 roer forbrug", math.floor(rates[BEET].consumption + 0.5), 216000)
+check("S18 TMR produktion", math.floor(rates[FORAGE].production + 0.5), 1152000)
+check("S18 halm i stald 500 l/t", rates[STRAW].consumption, 12000)
+check("S18 vand 100 l/t", rates[WATER].consumption, 2400)
+check("S18 anden farm tæller ikke", rates[STRAW].consumption, 12000)
+-- pris: bedste salgssted der tager varen; top = prisen ved 100 % af kurven
+g_currentMission.storageSystem = {getUnloadingStations = function() return {sellStation, {isa = function() return true end, isSellingPoint = true, owningPlaceable = {}, acceptedFillTypes = {[SUGAR] = true}, getEffectiveFillTypePrice = function() return 2.0 end}} end}
+sellStation.getEffectiveFillTypePrice = function() return 1.5 end
+g_currentMission.environment = {currentPeriod = 1}
+DESC[SUGAR].economy = {factors = {0.8, 1.0}}
+local quote = ADSources.getMarketQuote(SUGAR)
+check("S18 bedste pris", quote.price, 2.0)
+check("S18 top ved 80 % af kurven", quote.top, 2.5)
+check("S18 intet salgssted -> nil", ADSources.getMarketQuote(FORAGE), nil)
+
 print(failures == 0 and "\nALLE TESTS OK" or ("\n" .. failures .. " FEJL"))
 os.exit(failures == 0 and 0 or 1)
diff --git a/tests/test_adStorageStats.lua b/tests/test_adStorageStats.lua
new file mode 100644
index 0000000..d0b48e8
--- /dev/null
+++ b/tests/test_adStorageStats.lua
@@ -0,0 +1,46 @@
+-- Kør: luajit tests/test_adStorageStats.lua   (fra repo-roden)
+-- Lagerstatistik pr. vare: fyldning, værdi nu / ved toppris, gårdens samlede beholdning, dage tilbage.
+
+dofile("FS25_ADSmartPickup/adStorageStats.lua")
+local S = ADStorageStats
+
+local failures = 0
+local function check(name, actual, expected)
+    if actual == expected then print("OK   " .. name) else failures = failures + 1; print(string.format("FAIL %s: forventede %s, fik %s", name, tostring(expected), tostring(actual))) end
+end
+
+-- ST1: fuld beregning
+local st = S.itemStats({fillType = 5, level = 150000, capacity = 180000}, 412000, {consumption = 130000, production = 48000}, {price = 1.6, top = 2.0})
+check("ST1 procent", st.percent, 83)
+check("ST1 værdi nu", st.valueNow, 240000)
+check("ST1 værdi top", st.valueTop, 300000)
+check("ST1 gårdens beholdning", st.farmTotal, 412000)
+check("ST1 dage", math.floor(st.days * 10 + 0.5) / 10, 3.2)
+check("ST1 netto pr. døgn", st.net, -82000)
+
+-- ST2: ingen salgssted, intet forbrug, ingen kapacitet
+local st2 = S.itemStats({fillType = 6, level = 5000, capacity = 0}, 5000, nil, nil)
+check("ST2 ingen pris -> nil", st2.valueNow, nil)
+check("ST2 intet forbrug -> dage nil", st2.days, nil)
+check("ST2 kapacitet 0 -> procent nil", st2.percent, nil)
+
+-- ST3: bygningens samlede værdi (kun varer med pris)
+local total = S.buildingTotals({st, st2, S.itemStats({fillType = 7, level = 1000, capacity = 2000}, 1000, nil, {price = 2, top = 3})})
+check("ST3 samlet nu", total.valueNow, 242000)
+check("ST3 samlet top", total.valueTop, 303000)
+
+-- ST4: gårdens totaler fra inventar
+local totals = S.farmTotals({{entries = {{fillType = 5, level = 100}, {fillType = 6, level = 5}}}, {entries = {{fillType = 5, level = 50}}}})
+check("ST4 sum pr. vare", totals[5], 150)
+check("ST4 anden vare", totals[6], 5)
+
+-- ST5: foder-forbrug i et fælles trug fordeles efter truget indhold; tomt trug -> bedste foder
+local split = S.splitTroughConsumption(2400, {[116] = 3000, [7] = 1000}, {[116] = 1.0, [7] = 0.8})
+check("ST5 TMR 75 %", split[116], 1800)
+check("ST5 ensilage 25 %", split[7], 600)
+local empty = S.splitTroughConsumption(2400, {}, {[116] = 1.0, [7] = 0.8})
+check("ST5 tomt trug -> bedste foder", empty[116], 2400)
+check("ST5 tomt trug -> intet på ensilage", empty[7], nil)
+
+print(failures == 0 and "\nALLE TESTS OK" or ("\n" .. failures .. " FEJL"))
+os.exit(failures == 0 and 0 or 1)