Twenty quick tools for everyday money math — no sign-up, figures shown as you type.
Find the real sale price — and stack a second discount on top if there is one.
"30% off, plus an extra 10%" isn't 40% off — the second discount applies to the already-discounted price, not the original. Stacked, 30% then 10% comes out to 37% off total, not 40%. This calculator applies each discount in order so the final number is accurate.