What is the Percentage Difference from 8 to 80?
From 8 to 80 is a 900% increase
- Change
- 900%
- Difference
- 72
- New ÷ old
- 10
- Direction
- increase
How to work it out
- Difference: 80 − 8 = 72
- Divide by the starting value: 72 ÷ 8 = 9
- Multiply by 100: 900%
- Check: Work forwards from the start: 8 × (1 + 9) = 8 × 10 = 80.
In a spreadsheet: =(80-8)/8*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 10 times the old one: for every 100 at the start there are now 1,000. The value has more than doubled.
Prices: an item whose price rises from $8 to $80 has gone up by 900%.
Why the change back is different
A 900% rise followed by a 900% fall does not bring you back to 8: it gives -640. The second percentage is taken of 80, not of 8, so to undo this change you need 90% instead.
Related results
| 8 to 78 | From 8 to 78 is a 875% increase |
| 8 to 79 | From 8 to 79 is a 887.5% increase |
| 8 to 81 | From 8 to 81 is a 912.5% increase |
| 8 to 82 | From 8 to 82 is a 925% increase |
| 8 to 90 | From 8 to 90 is a 1,025% increase |
The other way round: Percentage difference from 80 to 8
Practice
| 2 to 18 | Show answerFrom 2 to 18 is a 800% increase |
| 28 to 76 | Show answerFrom 28 to 76 is a 171.4286% increase |
| 6 to 79 | Show answerFrom 6 to 79 is a 1,216.6667% increase |
| 15 to 44 | Show answerFrom 15 to 44 is a 193.3333% increase |
| 33 to 95 | Show answerFrom 33 to 95 is a 187.8788% increase |
| 81 to 32 | Show answerFrom 81 to 32 is a 60.4938% decrease |
How answers are calculated and checked: methodology.
Questions
What is the Percentage Difference from 8 to 80?
Going from 8 to 80 is a 900% increase. Formula and steps.
Is going from 8 to 80 an increase or a decrease?
An increase: the value grew by 72, which is 900% of the starting value.
What is the percentage change from 80 back to 8?
-90%. It is a different number because the starting value is now 80, not 8.