Sumwise

Percentage Difference between 40 and 70

Between 40 and 70: 54.5455% difference

Difference
54.5455%
Gap
30
Average
55
Ratio
1.75 : 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: |40 − 70| = 30
  2. Average of the values: (40 + 70) ÷ 2 = 55
  3. Divide the gap by the average and multiply by 100: 30 ÷ 55 × 100 = 54.5455%
  4. Check: Work backwards: 0.545455 × 55 = 30, the gap between the values.

In a spreadsheet: =ABS(40-70)/((40+70)/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

70 is 30 more than 40. Measured against their average, 55, that gap is 54.5455%. The result is the same whichever value you name first.

Prices: if one shop charges $40 and another $70 for the same item, the prices differ by 54.5455%.

Why the average is the base

Dividing the gap of 30 by 40 gives 75%, and dividing it by 70 gives 42.8571%. The average, 55, sits between them, so the result does not depend on which value is listed first.

Related results

Results for nearby numbers
40 and 80

Between 40 and 80: 66.6667% difference

40 and 60

Between 40 and 60: 40% difference

50 and 70

Between 50 and 70: 33.3333% difference

30 and 70

Between 30 and 70: 80% difference

The other way round: Percentage change from 40 to 70. Percentage difference is symmetric: between 70 and 40 it is the same 54.5455%, so there is one page for each pair of numbers. Percentage change is not: from 40 to 70 is +75%, from 70 to 40 is -42.8571%.

Practice

9 and 32
Show answer

Between 9 and 32: 112.1951% difference

57 and 72
Show answer

Between 57 and 72: 23.2558% difference

27 and 77
Show answer

Between 27 and 77: 96.1538% difference

47 and 59
Show answer

Between 47 and 59: 22.6415% difference

49 and 52
Show answer

Between 49 and 52: 5.9406% difference

90 and 99
Show answer

Between 90 and 99: 9.5238% difference

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Difference between 40 and 70

The percentage difference between 40 and 70 is 54.5455%: the gap divided by the average. Formula and steps.

What is the percentage change from 40 to 70?

+75%. Percentage change uses the starting value (40) as the base, so it is larger than the percentage difference of 54.5455%.

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.