Six dedicated percentage calculators in one place — no switching tabs. Calculate percent of a number, percent change, discounts, profit margins, tax, and more.
What is X% of Y?
% increase or decrease from A to B
Price after X% off
Margin % from cost & revenue
Price after adding tax
Find what percent X is of Y
After calculating here, use the result directly in Excel. For percent change in Excel: =(B1-A1)/A1 formatted as percentage. For tax: =A1*(1+tax_rate).
Profit margin is profit ÷ revenue × 100. Markup is profit ÷ cost × 100. They're often confused — a 50% markup is only a 33% profit margin.
% of number: (P/100)×N. Percent change: ((New−Old)/Old)×100. Discount price: Price×(1−D/100). Tax total: Price×(1+T/100).
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