Percentage & Discount
Quick percent change and discount math.
Estimates only — not financial advice.
1Input Details
Percent change calculator
Discount calculator
€
%
Reverse discount (sale price → original)
Uses the discount % from above. Enter the sale price to find the original.
€
Tip calculator
€
%
Markup calculator (cost → retail)
€
%
How it works
Percent change compares the difference to the original value.
Discounted price = original price - (discount % × original price).