Sale price and savings from a discount %, or the discount % from a sale price, with optional stacked second discount.. Discount Calculator is a free online tool from the ToolsRift Finance & Health Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter the original price and discount percentage, or a sale price to find the percent off. Add a second discount to see the stacked final price and savings.
Sale price = original price × (1 − discount%). For ₹1,000 at 20% off, you pay ₹1,000 × 0.80 = ₹800 and save ₹200.
Stacked discounts apply one after another, not added together. A 20% then 10% off is 0.80 × 0.90 = 0.72, an effective 28% off, not 30%.
Discount% = (original − sale) / original × 100. If an item drops from ₹1,000 to ₹750, that is a 25% discount.