Sumwise

What is 50% off 15?

50% off 15 = 7.5 (you save 7.5)

Sale price
7.5
You save
7.5
You pay
50%
Original
15

Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work

How to work it out

  1. Work out the discount: 50% of 15 = 0.5 × 15 = 7.5
  2. Take it off the price: 15 − 7.5 = 7.5
  3. Check: Add the saving back: 7.5 + 7.5 = 15.

Another method. In one step: you pay 50% of the price, so 0.5 × 15 = 7.5. Both methods always give the same answer.

In a spreadsheet: =15*(1-50%). Taking the percentage of the price gives the saving, not the price you pay. Subtract it, or multiply by the share that is left.

What the result means

After 50% off, you pay 50% of the price: 7.5 instead of 15, a saving of 7.5.

Shopping: an item marked $15 with 50% off costs $7.5 at the till, before any sales tax.

Stacked discounts

50% off followed by another 50% off is 75% off in total, not 100%: the second discount applies to the lower price.

Related results

Results for nearby numbers
10% off 15

10% off 15 = 13.5 (you save 1.5)

15% off 15

15% off 15 = 12.75 (you save 2.25)

20% off 15

20% off 15 = 12 (you save 3)

25% off 15

25% off 15 = 11.25 (you save 3.75)

30% off 15

30% off 15 = 10.5 (you save 4.5)

40% off 15

40% off 15 = 9 (you save 6)

The other way round: 50% of 15. Two discounts do not add up: 50% off and then another 50% off leaves 3.75, not 0, because the second discount is taken of the lower price.

Practice

10% off 28
Show answer

10% off 28 = 25.2 (you save 2.8)

35% off 30
Show answer

35% off 30 = 19.5 (you save 10.5)

62% off 4
Show answer

62% off 4 = 1.52 (you save 2.48)

8% off 94
Show answer

8% off 94 = 86.48 (you save 7.52)

86% off 83
Show answer

86% off 83 = 11.62 (you save 71.38)

94% off 99
Show answer

94% off 99 = 5.94 (you save 93.06)

Calculate another

How answers are calculated and checked: methodology.

Questions

What is 50% off 15?

50% off 15 is 7.5: you save 7.5. Formula and steps for the sale price.

How much do I save with 50% off 15?

7.5. That is 50% of 15.

What was the price before 50% off if I paid 7.5?

15. Divide what you paid by 0.5, the share of the price that is left.