Sumwise

Percentage Change from 43 to 18

From 43 to 18 is a 58.1395% decrease

Change
-58.1395%
Difference
-25
New ÷ old
0.418605
Direction
decrease

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. Difference: 18 − 43 = -25
  2. Divide by the starting value: -25 ÷ 43 = -0.581395
  3. Multiply by 100: -58.1395%
  4. Check: Work forwards from the start: 43 × (1 − 0.581395) = 43 × 0.418605 = 18.

In a spreadsheet: =(18-43)/43*100. Always divide by the starting value, not the new one. A rise from 40 to 50 is +25%, but the fall from 50 back to 40 is −20%.

What the result means

The new value is 41.8605% of the old one: for every 100 at the start there are now 41.8605, so 58.1395 out of every 100 have gone.

Sales: a price cut from $43 to $18 is a 58.1395% discount.

Why the change back is different

A 58.1395% fall followed by a 58.1395% rise does not bring you back to 43: it gives 28.4651. The second percentage is taken of 18, not of 43, so to undo this change you need 138.8889% instead.

Related results

Results for nearby numbers
43 to 16

From 43 to 16 is a 62.7907% decrease

43 to 17

From 43 to 17 is a 60.4651% decrease

43 to 19

From 43 to 19 is a 55.814% decrease

43 to 20

From 43 to 20 is a 53.4884% decrease

43 to 28

From 43 to 28 is a 34.8837% decrease

The other way round: Percentage change from 18 to 43. Percentage change is not symmetric: from 43 to 18 is -58.1395%, but from 18 back to 43 is 138.8889%, because the starting value is the base. For a comparison that is the same both ways, use the percentage difference between 18 and 43: 81.9672%. See Percentage difference between 18 and 43.

Practice

9 to 22
Show answer

From 9 to 22 is a 144.4444% increase

34 to 5
Show answer

From 34 to 5 is a 85.2941% decrease

81 to 65
Show answer

From 81 to 65 is a 19.7531% decrease

24 to 55
Show answer

From 24 to 55 is a 129.1667% increase

57 to 5
Show answer

From 57 to 5 is a 91.2281% decrease

53 to 4
Show answer

From 53 to 4 is a 92.4528% decrease

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Change from 43 to 18

Going from 43 to 18 is a 58.1395% decrease. Formula and steps.

Is going from 43 to 18 an increase or a decrease?

A decrease: the value fell by 25, which is 58.1395% of the starting value.

What is the percentage change from 18 back to 43?

138.8889%. It is a different number because the starting value is now 18, not 43.