Sumwise

What is the Percentage Difference from 11 to 18?

From 11 to 18 is a 63.6364% increase

Change
63.6364%
Difference
7
New ÷ old
1.636364
Direction
increase

Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it

How to work it out

  1. Difference: 18 − 11 = 7
  2. Divide by the starting value: 7 ÷ 11 = 0.636364
  3. Multiply by 100: 63.6364%
  4. Check: Work forwards from the start: 11 × (1 + 0.636364) = 11 × 1.636364 = 18.

In a spreadsheet: =(18-11)/11*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 1.6364 times the old one: for every 100 at the start there are now 163.6364.

Prices: an item whose price rises from $11 to $18 has gone up by 63.6364%.

Why the change back is different

A 63.6364% rise followed by a 63.6364% fall does not bring you back to 11: it gives 6.5455. The second percentage is taken of 18, not of 11, so to undo this change you need 38.8889% instead.

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The other way round: Percentage difference from 18 to 11

Practice

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Calculate another

How answers are calculated and checked: methodology.

Questions

What is the Percentage Difference from 11 to 18?

Going from 11 to 18 is a 63.6364% increase. Formula and steps.

Is going from 11 to 18 an increase or a decrease?

An increase: the value grew by 7, which is 63.6364% of the starting value.

What is the percentage change from 18 back to 11?

-38.8889%. It is a different number because the starting value is now 18, not 11.