20% Off $100
$100 with 20% off = $80. You save $20 on the original price.
Sale Price
$80$100
You save $20 (20% off)
Discount Calculator
Calculate the sale price, savings, and optional tax.
0%50%100%
Original Price$100.00
Discount (20%)−$20.00
Final Price$80.00
You save$20.00
Quick Discounts
How to calculate 20% off $100
Step 1: Calculate the discount amount. Multiply $100 by 20 and divide by 100: $100 × 20 ÷ 100 = $20.
Step 2: Subtract the discount from the original price: $100 − $20 = $80.
Shortcut: Multiply $100 by 0.8 (which is 1 − 0.2). You get $80 directly.
FAQ
- What is 20% off $100?
- 20% off $100 is a $20 discount. The sale price is $80. Formula: $100 × 20 ÷ 100 = $20 off.
- How much do I save with 20% off $100?
- You save $20. The original price is $100 and the discounted price is $80.
- What is $100 minus 20%?
- $100 minus 20% equals $80. This is the same as multiplying $100 by 0.8 (which is 1 − 0.2).
- How do I calculate 20% off any price?
- Multiply the price by 0.2, then subtract from the original. Or multiply by 0.8 directly to get the sale price.