Percent Off Calculator

Calculate sale prices and savings instantly. Find out how much you'll pay after discounts with support for stackable percentages and sales tax.

Original price

Percent off

Add second stackable percent off

Percent Off Quick Reference

Quick reference for common discount percentages on a Rs100 item:

Discount	Original	Final Price	You Save
10% off	Rs100	Rs90	Rs10
15% off	Rs100	Rs85	Rs15
20% off	Rs100	Rs80	Rs20
25% off	Rs100	Rs75	Rs25
30% off	Rs100	Rs70	Rs30
40% off	Rs100	Rs60	Rs40
50% off	Rs100	Rs50	Rs50

Common Shopping Scenarios

20% off sale

Rs1000 → Rs800(Save Rs200)

10% member discount

Rs500 → Rs450(Save Rs50)

30% clearance

Rs2000 → Rs1400(Save Rs600)

50% Black Friday

Rs1500 → Rs750(Save Rs750)

How to Calculate Percent Off

Basic Formula

Final Price = Original Price × (1 - Discount%/100)

Or: Final Price = Original Price - (Original Price × Discount%/100)

Quick 10% Off Method

Simply move the decimal one place left.
Example: 10% off Rs 250 = Rs 25 off → Rs 225

Quick 20% Off Method

Calculate 10%, then double it.
Example: 20% off Rs 300 = Rs 60 off → Rs 240

Quick 25% Off Method

Divide by 4 to find the discount.
Example: 25% off Rs 400 = Rs 100 off → Rs 300

Quick 50% Off Method

Simply divide by 2.
Example: 50% off Rs 800 = Rs 400 off → Rs 400

Stackable Discounts

When applying multiple discounts, each is calculated on the already-reduced price:

Example: Rs 1000 with 20% off, then 10% off

Step 1: Rs 1000 × (1 - 0.20) = Rs 800

Step 2: Rs 800 × (1 - 0.10) = Rs 720

Total savings: Rs 280 (28% effective discount, NOT 30%)

Understanding Percent Off

What is Percent Off?

Percent off (or percentage discount) represents how much the original price is reduced by a certain percentage. When something is "20% off," you pay 80% of the original price and save 20%. This is the most common way retailers advertise sales and promotions.

Why Stackable Discounts Aren't Simply Added

When you have two discounts (like a store sale plus a coupon), they're applied sequentially, not added together. The second discount applies to the already-reduced price, not the original. This is why 20% + 10% off equals 28% total savings, not 30%.

When Is Sales Tax Calculated?

Sales tax is typically calculated on the final discounted price, not the original price. This means you save on both the product price AND the tax amount. The tax is added after all discounts are applied.

Black Friday & Cyber Monday Tips

Average discounts during these sales events range from 25-35%. Use this calculator to verify actual savings and compare deals. Remember: a 50% discount on an inflated price may not be a real bargain. Always check the original price history before buying.

Frequently Asked Questions

How do I calculate 20% off?

To calculate 20% off, multiply the original price by 0.20 (or divide by 5) to find the discount amount, then subtract from the original. Alternatively, multiply the original by 0.80 to get the final price directly. Example: 20% off Rs 500 = Rs 500 × 0.80 = Rs 400.

What is the formula for percent off?

Final Price = Original Price × (1 - Discount/100), or Discount Amount = Original Price × (Discount/100). For example, 30% off Rs 200: Discount = 200 × 0.30 = Rs 60, Final Price = Rs 200 - Rs 60 = Rs 140.

How do stackable discounts work?

Stackable discounts are applied one after another, not added together. The second discount is calculated on the price after the first discount. Example: 30% off + 20% off doesn't equal 50% off. Instead: Rs 100 → Rs 70 (30% off) → Rs 56 (20% off Rs 70) = 44% total savings.

Is it better to get a flat amount off or percentage off?

It depends on the original price. Calculate both to compare. For expensive items, percentage discounts often save more. For cheaper items, flat discounts might be better. Example: Rs 50 off vs 10% off on Rs 400 → Rs 50 off is better (Rs 50 vs Rs 40 savings).

How do I find the original price from a sale price?

Original Price = Sale Price ÷ (1 - Discount/100). Example: If something costs Rs 80 after 20% off, the original was Rs 80 ÷ 0.80 = Rs 100. This is useful for verifying "sale" prices.

Does sales tax apply before or after the discount?

In most regions, sales tax is applied to the final discounted price, not the original price. This means you save on both the product and the tax. Always check your local tax laws as rules may vary by location.

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