Shopping and discounts

Sale prices, discounts and tax.

8 tools in this part of the catalogue.

Calculate a sale price, the discount amount and any tax.

Calculate a tip, bill total and amount per person.

Add sales tax to a price, or find the tax inside a total.

Find margin and markup from an item's cost and selling price.

Model purchasing power with entered inflation.

Compare two packs on the same unit basis.

Total recurring costs on a shared annual basis.

Convert currencies using your own rate.