Sumwise

What is 5% off 20?

5% off 20 = 19 (you save 1)

Sale price
19
You save
1
You pay
95%
Original
20

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: 5% of 20 = 0.05 × 20 = 1
  2. Take it off the price: 20 − 1 = 19
  3. Check: Add the saving back: 19 + 1 = 20.

Another method. In one step: you pay 95% of the price, so 0.95 × 20 = 19. Both methods always give the same answer.

In a spreadsheet: =20*(1-5%). 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 5% off, you pay 95% of the price: 19 instead of 20, a saving of 1.

Shopping: an item marked $20 with 5% off costs $19 at the till, before any sales tax.

Stacked discounts

5% off followed by another 5% off is 9.75% off in total, not 10%: the second discount applies to the lower price.

Related results

Results for nearby numbers
10% off 20

10% off 20 = 18 (you save 2)

15% off 20

15% off 20 = 17 (you save 3)

20% off 20

20% off 20 = 16 (you save 4)

25% off 20

25% off 20 = 15 (you save 5)

30% off 20

30% off 20 = 14 (you save 6)

40% off 20

40% off 20 = 12 (you save 8)

50% off 20

50% off 20 = 10 (you save 10)

The other way round: 5% of 20. Two discounts do not add up: 5% off and then another 5% off leaves 18.05, not 18, because the second discount is taken of the lower price.

Practice

2% off 72
Show answer

2% off 72 = 70.56 (you save 1.44)

72% off 47
Show answer

72% off 47 = 13.16 (you save 33.84)

97% off 96
Show answer

97% off 96 = 2.88 (you save 93.12)

45% off 25
Show answer

45% off 25 = 13.75 (you save 11.25)

67% off 84
Show answer

67% off 84 = 27.72 (you save 56.28)

32% off 32
Show answer

32% off 32 = 21.76 (you save 10.24)

Calculate another

How answers are calculated and checked: methodology.

Questions

What is 5% off 20?

5% off 20 is 19: you save 1. Formula and steps for the sale price.

How much do I save with 5% off 20?

1. That is 5% of 20.

What was the price before 5% off if I paid 19?

20. Divide what you paid by 0.95, the share of the price that is left.