Percent Off vs Amount Off: Which Deal Is Better?

Two Deals, Two Calculations

Stores discount things in two ways: a percentage off (20% off) or a fixed amount off ($50 off over $300). Both look like savings, but which one is actually better depends entirely on the price. Get the math wrong and you'll think you scored a deal while paying more than you needed to.

One Formula Tells You Which Deal Wins

Take "$50 off orders over $300" versus "20% off." The percentage deal saves you price × 20%. So the crossover point is: 50 ÷ 20% = $250.

The general rule: crossover price = fixed discount ÷ percentage. Above the crossover, pick the percentage; below it, pick the fixed amount. Punch both options into a discount calculator and you'll have the answer in seconds.

Stacked Discounts Multiply, They Don't Add

The classic sale trap: "50% off, then an extra 30% off." Plenty of shoppers add those to 80% off. They don't work that way. It's multiplication: 0.5 × 0.7 = 0.35. You pay 35% of the original price — a total of 65% off, not 80%. The deal is real, but smaller than it looks.

• Two items at 20% off each → 0.8 × 0.8 = 0.64, that's 36% off total
• $30 off over $200, then another 10% off → apply the reduction first, then multiply by 0.9
• Coupons and points usually come off proportionally at the last step, not straight off the subtotal

Three Ways to Stay Out of the Math Trap

• Compare final prices: Ignore the advertised percentage and compute what you actually pay under each option
• Watch the minimum spend: Buying an extra $100 just to hit a threshold isn't saving — it's spending
• Verify with a calculator: Mental math fails on stacked deals; a discount calculator settles it instantly

FAQ

On a $30 item, is $10 off or 20% off better?

20% off saves $6; $10 off saves $10. Take the $10 discount.

Does the order of discounts change the total?

Often yes — platforms apply their own sequence. Check the terms, or just compute the final price both ways.