This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own Shuffle an Egg session. It will not click the shop.
Upgrade payback
Upgrade payback
Estimate how long a zoo, dealer, cup, or egg upgrade takes to repay its Cash cost. Type the cost and the extra Cash you measured. The sample defaults are placeholders, not live prices.
Payback cycles = upgrade cost ÷ extra profit per cycle, rounded up.
Measure extra Cash over one payout or one clean cup win, and enter how many minutes that cycle takes. Replace every default with your screen. Walkthrough stakes such as 100 Cash or 400 million Cash are not built into this math.
