Free Online Calculators

Discount Calculator

Calculate the final price after a discount — or find what % discount was applied.

Calculate Sale Price
Sale Price
—
Original Price—
Discount Amount—
You Save—
Final Price—

How to Calculate Discount — Formula & Examples

A discount is a reduction from the original (MRP) price of a product. Understanding how to calculate discounts helps you compare deals, find the best sale price, and avoid misleading "offers" that are not actually discounts.

Discount Amount = Original Price × Discount% ÷ 100
Sale Price = Original Price − Discount Amount
Discount % = (Original Price − Sale Price) ÷ Original Price × 100

Original PriceDiscount %You SaveSale Price
₹1,00010%₹100₹900
₹2,50025%₹625₹1,875
₹5,00040%₹2,000₹3,000
₹10,00050%₹5,000₹5,000
₹15,00070%₹10,500₹4,500

GST After Discount

In India, Under section 15(3) of the CGST Act, a discount given before or at the time of supply and recorded on the invoice is excluded from the value for GST, so GST applies on the discounted price. Discounts given after the supply follow separate conditions in section 15(3), which this calculator does not cover, so check them with a tax adviser. For example, a ₹1,000 product with 20% discount and 18% GST: Sale price = ₹800, GST = ₹144, Final price = ₹944.

How do I find the discount percentage?
Discount % = (Original Price − Sale Price) ÷ Original Price × 100. Example: Original ₹800, Sale ₹560 → Discount = (800−560)÷800×100 = 30%.
How to calculate 30% off ₹2,500?
Discount Amount = ₹2,500 × 30 ÷ 100 = ₹750. Sale Price = ₹2,500 − ₹750 = ₹1,750.
Is GST calculated on MRP or discounted price in India?
If the discount is recorded on the invoice at the time of sale (CGST Act section 15(3)), GST applies on the discounted price. For example, MRP ₹1,000 with a 20% invoice discount means GST is charged on ₹800.
Press / to open  ·  Esc to close