Percentage Difference between 20 and 27
Between 20 and 27: 29.7872% difference
- Difference
- 29.7872%
- Gap
- 7
- Average
- 23.5
- Ratio
- 1.35 : 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
- Gap between the values: |20 − 27| = 7
- Average of the values: (20 + 27) ÷ 2 = 23.5
- Divide the gap by the average and multiply by 100: 7 ÷ 23.5 × 100 = 29.7872%
- Check: Work backwards: 0.297872 × 23.5 = 7, the gap between the values.
In a spreadsheet: =ABS(20-27)/((20+27)/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
27 is 7 more than 20. Measured against their average, 23.5, that gap is 29.7872%. The result is the same whichever value you name first.
Prices: if one shop charges $20 and another $27 for the same item, the prices differ by 29.7872%.
Why the average is the base
Dividing the gap of 7 by 20 gives 35%, and dividing it by 27 gives 25.9259%. The average, 23.5, sits between them, so the result does not depend on which value is listed first.
Related results
| 20 and 37 | Between 20 and 37: 59.6491% difference |
| 10 and 27 | Between 10 and 27: 91.8919% difference |
The other way round: Percentage change from 20 to 27. Percentage difference is symmetric: between 27 and 20 it is the same 29.7872%, so there is one page for each pair of numbers. Percentage change is not: from 20 to 27 is +35%, from 27 to 20 is -25.9259%.
Practice
| 4 and 5 | Show answerBetween 4 and 5: 22.2222% difference |
| 15 and 25 | Show answerBetween 15 and 25: 50% difference |
| 64 and 88 | Show answerBetween 64 and 88: 31.5789% difference |
| 37 and 48 | Show answerBetween 37 and 48: 25.8824% difference |
| 13 and 26 | Show answerBetween 13 and 26: 66.6667% difference |
| 3 and 36 | Show answerBetween 3 and 36: 169.2308% difference |
How answers are calculated and checked: methodology.
Questions
Percentage Difference between 20 and 27
The percentage difference between 20 and 27 is 29.7872%: the gap divided by the average. Formula and steps.
What is the percentage change from 20 to 27?
+35%. Percentage change uses the starting value (20) as the base, so it is larger than the percentage difference of 29.7872%.
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.