Sumwise

What is 10 Percent of 20?

10% of 20 = 2

Result
2
Remaining
18
10% as decimal
0.1
20 + 10%
22

Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it

How to work it out

  1. Turn the percentage into a decimal: 10 ÷ 100 = 0.1
  2. Multiply: 0.1 × 20 = 2
  3. Check: Work backwards: 2 ÷ 20 × 100 = 10%.

Another method. As a proportion of part to whole: 10/100 = part/20, so part = 10 × 20 ÷ 100 = 2. Both methods always give the same answer.

In a spreadsheet: =10%*20. Forgetting to divide the percentage by 100 makes the answer 100 times too big. Note that x% of y always equals y% of x.

What the result means

2 is the 10% share of 20. The remaining 90% is 18, and the two parts add back up to 20.

Discounts: 10% off an item priced $20 saves $2, so you pay $18.

Adding and taking away 10%

Increasing 20 by 10% gives 22 and decreasing it by 10% gives 18. These do not cancel out: raising 20 by 10% and then lowering the result by 10% ends at 19.8, because the second 10% is taken of a bigger number.

Related results

Results for nearby numbers
5% of 20

5% of 20 = 1

15% of 20

15% of 20 = 3

20% of 20

20% of 20 = 4

25% of 20

25% of 20 = 5

50% of 20

50% of 20 = 10

75% of 20

75% of 20 = 15

The other way round: 20% of 10

Practice

2% of 15
Show answer

2% of 15 = 0.3

43% of 63
Show answer

43% of 63 = 27.09

93% of 98
Show answer

93% of 98 = 91.14

80% of 25
Show answer

80% of 25 = 20

11% of 63
Show answer

11% of 63 = 6.93

60% of 70
Show answer

60% of 70 = 42

Calculate another

How answers are calculated and checked: methodology.

Questions

What is 10 Percent of 20?

10% of 20 is 2. Formula, steps and practice examples.

What is 10% off 20?

18. Taking 10% off leaves 90% of 20.

What is 20 plus 10%?

22. Adding 10% is the same as multiplying by 1.1.