Question

What is the percentage change from 50 to 60?

Answer 1

There was a 20% increase

Explanation:

The formula for the change in values over a period of time is:

`p = (N - O)/O xx 100`

Where:

`p` is the percentage change - what we are solving for in this problem.
`N` is the New value - `60` for this problem.
`O` is the Old value - `50` for this problem.

Substituting and calculating `p` gives:

`p = (60 - 50)/50 xx 100`

`p = 10/50 xx 100`

`p = 1000/50`

`p = 20`