This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own Islands Reborn (🏭Factory Update) session. It will not click the shop.
Profit estimator
Potato Salad Sale Estimate
Estimates a batch of potato salad from the sale price you enter. The 600 default is a reported peak town price per bowl, not a guaranteed price. One bowl uses four crop inputs. Seed and crop costs were not published, so the cost field starts at 0 until you type what you paid.
Gross value = sell value × cycles × quantity × (1 + bonus ÷ 100). Net profit = gross value − unit cost × quantity.
Replace sell value with the price on your server. Leave seed cost at 0 to see the sale total only. Harvests and quantity multiply that price in the installed estimator. No fertilizer bonus is assumed.
Material planner
Steel Press Copper Plates
Counts copper plates still needed for steel presses. One press takes 100 plates. It also takes 250 copper rods and 25 steel rods, which this form does not count.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
Change the per-unit number to 250 if you are counting copper rods, or to 25 if you are counting steel rods, and track those piles separately.
Material planner
Steel Mill Iron
Counts the 100 iron reported for each steel mill. The same craft also needs 50 gold ore ingots, which you track separately.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
The source says 100 iron and 50 gold ore ingots. It does not say whether the iron is ore or bars. Gold is not subtracted here.