How it works

Three steps. Zero friction.

Built on a single formula, wrapped in a solver that figures out the rest.

Enter the numbers.

Type the original price and the discount percentage in the input column — add an extra stacked discount or a fixed amount if the offer calls for it.

The results column fills in instantly: final price, savings amount and the true discount percentage.

Grab a clean summary for your notes, or share a link that reproduces the exact calculation.

final = original × (1 − d/100)
saved = original × d/100

# stackable: 20% then 15% in sequence
combined = 1 − 0.80 × 0.85 = 32%

Try: 120 × (1 − 25/100) = 90

Next time a sale tag confuses you, this takes three seconds.