You are not processing crops into seeds and replanting them
You are buying seeds at their normal price (no sales/discounts)
Crops are harvested immediately when grown, then the same amount are replanted the same day
Any specified Fertilizer or Totems affect ALL crops in the calculation
Fertilizers and Totems applied to crops that regrow, only affect the INITIAL harvest, not subsequent ones.
A crop that regrows that has been fertilized will NO LONGER activate the "Fertile Land" skill after its first harvest, even if it still appears to be fertilized.
When determining crop growth speed and extra harvest chance: any relevant Skills, Totems, or Fertilizers have their effects applied to the base crop numbers in an additive manner rather than multiplicative
This calculator determines an AVERAGE profit. Many skills/totems/fertilizers give a "chance" to get extra crops, so your personal results may differ from these averages.
When considering "amounts of days" that the calculator will run, if the calculation will run multiple seasons, only the FIRST eligible growing period for a crop is considered. Ex: Starting the calculator on Summer 15th, and running for 88 days (until Spring 15th) for a crop that grows in both Summer and Spring will only calculate for the initial Summer growth period.