percentage off calculator
Percent Off Calculator
Find sale price, amount saved, and effective discount — with stacked coupon support
🏷️ Sale Price
💰 Amount Saved
🎫 Stacked Coupons
✓ Instant Results
Enter the original price and discount percentage to find the sale price and savings.
Quick Discount Presets:
Original Price ← Enter
$
Discount (% Off) ← Enter
%
Add stackable coupon / extra discount? (e.g. coupon on top of sale)
Additional Coupon / Extra Discount Applied on sale price
%
⚠️ This % is applied to the already-discounted price, not the original.
Know the original and sale price? Find out what percentage off was applied.
Original Price ← Enter
$
Sale Price ← Enter
$
Know the sale price and discount %? Work backwards to find the original price.
Sale Price (after discount) ← Enter
$
Discount Applied ← Enter
%
Discount Reference Table
Common discount amounts for popular price points. Click "Calc ↑" to load into the calculator.
| Original Price | Discount | You Save | Sale Price |
|---|
How It's Calculated
The math behind each mode.
Sale Price
Sale = Original
× (1 − Disc÷100)
e.g. $279 at 20% off
= 279 × 0.80 = $223.20
× (1 − Disc÷100)
e.g. $279 at 20% off
= 279 × 0.80 = $223.20
Amount Saved
Saved = Original
× (Disc ÷ 100)
e.g. 20% of $279
= $55.80
× (Disc ÷ 100)
e.g. 20% of $279
= $55.80
Stacked Discount
Step 1: Apply 1st disc
Step 2: Apply 2nd disc
to new price
≠ sum of both %
Step 2: Apply 2nd disc
to new price
≠ sum of both %
Find Discount %
Disc% = ((Orig − Sale)
÷ Orig) × 100
e.g. $279→$223.20
= 20%
÷ Orig) × 100
e.g. $279→$223.20
= 20%
How Percent Off Works
A percent off means the price of a product is reduced by that percentage of its original value. For example, 20% off a $279 item means you subtract 20% of $279 from the original price:
20% of $279 = 0.20 × 279 = $55.80 saved → Final price = $223.20
What is a Stackable / Coupon Discount?
A stackable discount means getting a further percent off after a first discount is already applied. The second discount applies to the already-reduced price — not the original. This is important because stacking two discounts is less than their sum.
Example: 20% off $279 = $223.20 → then 15% coupon off $223.20 = $189.72. Total saved = $89.28, which is a 32% effective discount — not 35% (20+15).
Tips for Shopping Smarter
- Always apply the larger discount first to maximize savings on a stacked deal
- A 50% off sale + 20% coupon = 60% total off (not 70%)
- Use "Find Discount %" tab to verify if an advertised sale is accurate
- Compare effective discount rates when choosing between offers
Frequently Asked Questions
Percent off means the price is reduced by that percentage of its original value. A 30% off discount on a $100 item saves you $30, making the final price $70.
Yes. If something is 20% off, you pay the remaining 80% of the original price. So a $50 item at 20% off = $50 × 0.80 = $40.
No. Each successive discount is applied to the already-reduced price, not the original. A 20% + 15% stacked discount equals about 32% off the original — not 35%.
Use the "Find Original Price" tab. Formula: Original = Sale Price ÷ (1 − Discount÷100). Example: sale price $80 at 20% off → Original = 80 ÷ 0.80 = $100.
Use the "Find Discount %" tab on each offer to get the true effective percentage off. Then compare the final prices — the one with the lower final price is the better deal regardless of how the discount is advertised.
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