Sumwise

Percentage Difference between 13 and 17

Between 13 and 17: 26.6667% difference

Difference
26.6667%
Gap
4
Average
15
Ratio
1.3077 : 1

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. Gap between the values: |13 − 17| = 4
  2. Average of the values: (13 + 17) ÷ 2 = 15
  3. Divide the gap by the average and multiply by 100: 4 ÷ 15 × 100 = 26.6667%
  4. Check: Work backwards: 0.266667 × 15 = 4, the gap between the values.

In a spreadsheet: =ABS(13-17)/((13+17)/2)*100. Dividing by one of the values instead of their average turns it into a percentage change, which depends on which value you start from.

What the result means

17 is 4 more than 13. Measured against their average, 15, that gap is 26.6667%. The result is the same whichever value you name first.

Prices: if one shop charges $13 and another $17 for the same item, the prices differ by 26.6667%.

Why the average is the base

Dividing the gap of 4 by 13 gives 30.7692%, and dividing it by 17 gives 23.5294%. The average, 15, sits between them, so the result does not depend on which value is listed first.

Related results

Results for nearby numbers
13 and 27

Between 13 and 27: 70% difference

3 and 17

Between 3 and 17: 140% difference

The other way round: Percentage change from 13 to 17. Percentage difference is symmetric: between 17 and 13 it is the same 26.6667%, so there is one page for each pair of numbers. Percentage change is not: from 13 to 17 is +30.7692%, from 17 to 13 is -23.5294%.

Practice

3 and 62
Show answer

Between 3 and 62: 181.5385% difference

50 and 97
Show answer

Between 50 and 97: 63.9456% difference

20 and 37
Show answer

Between 20 and 37: 59.6491% difference

10 and 93
Show answer

Between 10 and 93: 161.165% difference

30 and 95
Show answer

Between 30 and 95: 104% difference

14 and 66
Show answer

Between 14 and 66: 130% difference

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Difference between 13 and 17

The percentage difference between 13 and 17 is 26.6667%: the gap divided by the average. Formula and steps.

What is the percentage change from 13 to 17?

+30.7692%. Percentage change uses the starting value (13) as the base, so it is larger than the percentage difference of 26.6667%.

What is the difference between percentage difference and percentage change?

Percentage change compares a new value with an old one and divides by the old value. Percentage difference compares two values on an equal footing and divides by their average, so the order does not matter.