Sumwise

Percentage Difference between 30 and 60

Between 30 and 60: 66.6667% difference

Difference
66.6667%
Gap
30
Average
45
Ratio
2 : 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: |30 − 60| = 30
  2. Average of the values: (30 + 60) ÷ 2 = 45
  3. Divide the gap by the average and multiply by 100: 30 ÷ 45 × 100 = 66.6667%
  4. Check: Work backwards: 0.666667 × 45 = 30, the gap between the values.

In a spreadsheet: =ABS(30-60)/((30+60)/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

60 is 30 more than 30. Measured against their average, 45, that gap is 66.6667%. The result is the same whichever value you name first.

Prices: if one shop charges $30 and another $60 for the same item, the prices differ by 66.6667%.

Why the average is the base

Dividing the gap of 30 by 30 gives 100%, and dividing it by 60 gives 50%. The average, 45, sits between them, so the result does not depend on which value is listed first.

Related results

Results for nearby numbers
30 and 70

Between 30 and 70: 80% difference

30 and 50

Between 30 and 50: 50% difference

40 and 60

Between 40 and 60: 40% difference

20 and 60

Between 20 and 60: 100% difference

The other way round: Percentage change from 30 to 60. Percentage difference is symmetric: between 60 and 30 it is the same 66.6667%, so there is one page for each pair of numbers. Percentage change is not: from 30 to 60 is +100%, from 60 to 30 is -50%.

Practice

6 and 41
Show answer

Between 6 and 41: 148.9362% difference

21 and 99
Show answer

Between 21 and 99: 130% difference

18 and 77
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Between 18 and 77: 124.2105% difference

64 and 79
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Between 64 and 79: 20.979% difference

17 and 60
Show answer

Between 17 and 60: 111.6883% difference

3 and 23
Show answer

Between 3 and 23: 153.8462% difference

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Difference between 30 and 60

The percentage difference between 30 and 60 is 66.6667%: the gap divided by the average. Formula and steps.

What is the percentage change from 30 to 60?

+100%. Percentage change uses the starting value (30) as the base, so it is larger than the percentage difference of 66.6667%.

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.