Sumwise

Percentage Difference between 60 and 90

Between 60 and 90: 40% difference

Difference
40%
Gap
30
Average
75
Ratio
1.5 : 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: |60 − 90| = 30
  2. Average of the values: (60 + 90) ÷ 2 = 75
  3. Divide the gap by the average and multiply by 100: 30 ÷ 75 × 100 = 40%
  4. Check: Work backwards: 0.4 × 75 = 30, the gap between the values.

In a spreadsheet: =ABS(60-90)/((60+90)/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

90 is 30 more than 60. Measured against their average, 75, that gap is 40%. The result is the same whichever value you name first.

Prices: if one shop charges $60 and another $90 for the same item, the prices differ by 40%.

Why the average is the base

Dividing the gap of 30 by 60 gives 50%, and dividing it by 90 gives 33.3333%. The average, 75, sits between them, so the result does not depend on which value is listed first.

Related results

Results for nearby numbers
60 and 100

Between 60 and 100: 50% difference

60 and 80

Between 60 and 80: 28.5714% difference

70 and 90

Between 70 and 90: 25% difference

50 and 90

Between 50 and 90: 57.1429% difference

The other way round: Percentage change from 60 to 90. Percentage difference is symmetric: between 90 and 60 it is the same 40%, so there is one page for each pair of numbers. Percentage change is not: from 60 to 90 is +50%, from 90 to 60 is -33.3333%.

Practice

12 and 28
Show answer

Between 12 and 28: 80% difference

21 and 33
Show answer

Between 21 and 33: 44.4444% difference

6 and 12
Show answer

Between 6 and 12: 66.6667% difference

15 and 78
Show answer

Between 15 and 78: 135.4839% difference

17 and 98
Show answer

Between 17 and 98: 140.8696% difference

35 and 87
Show answer

Between 35 and 87: 85.2459% difference

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Difference between 60 and 90

The percentage difference between 60 and 90 is 40%: the gap divided by the average. Formula and steps.

What is the percentage change from 60 to 90?

+50%. Percentage change uses the starting value (60) as the base, so it is larger than the percentage difference of 40%.

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.