Single Discount Calculator
A single discount removes a percentage of the original price once. Twenty percent means twenty parts out of one hundred, not a fixed amount of money. The amount saved and the amount paid are different quantities.
Enter the amount, set discounts and click "Calculate Discounted Amount"
How a single discount works
Total savings = P × d / 100
Final price = P − (P × d / 100) = P × (1 − d/100)
P = Original price; d = percentage discount (20 for 20%).
Worked examples
- Convert the percentage to a decimal: 25 ÷ 100 = 0.25
- Calculate the amount saved: 120.00 × 0.25 ≈ 30.00
- Subtract the saving from the original price: 120.00 − (120.00 × 0.25) ≈ 90.00
- Convert the percentage to a decimal: 12.5 ÷ 100 = 0.125
- Calculate the amount saved: 89.95 × 0.125 ≈ 11.24
- Subtract the saving from the original price: 89.95 − (89.95 × 0.125) ≈ 78.71
Amounts are rounded only for display; ≈ indicates a displayed approximation. Fixed-value coupons and taxes are not included.
Questions about single discounts
What happens at 0% and 100%?
At 0% you pay the original price; at 100% the price is zero. A zero starting price remains zero.
Does the currency matter?
The percentage calculation is the same in every currency. Keep all amounts in the same unit.
How is this different from two discounts?
A second percentage discount acts on the reduced price. Use the double calculator when an offer has two successive reductions.