Everyday Math
Discount Calculator — Calculations & Slabs for FY 2026-27
Enter the original price and discount percentage to instantly see the sale price, the amount saved, and the effective discount applied.
Pricing Details
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📊 Savings Math & Formulas
A discount represents a reduction in the original cost of a good or service. The mathematics behind calculating sales pricing involves finding the percentage portion and applying shifts.
Core Savings Equations
Here are the key algebraic formulas used to calculate discounts, stacked discounts, and sales tax:
- Standard Discount: Finds the savings by multiplying the original price by the discount percentage:
Savings = Original Price × (Discount % / 100) - Sale Price: Subtract the savings from the original price:
Sale Price = Original Price - Savings - Compounding Stacked Discount: When a second discount is applied, it acts on the already-discounted sale price:
Final Sale Price = Sale Price × (1 - Extra Discount % / 100) - Including Sales Tax: Sales tax is computed as a percentage of the final sale price:
Tax Amount = Final Sale Price × (Sales Tax % / 100)
Final Price = Final Sale Price + Tax Amount