Question

How do you calculate the percent change of 42 to 168?

Answer 1

See the entire solution process below:

Explanation:

The formula for calculate the percentage change in a value is:

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

Where:
`p` is the percentage change - what we are solving for
`N` is the New Value - `168` for this problem
`O` is the Old Value - `42` for this problem

Substituting and calculating gives:

`p = (168 - 42)/42 * 100`

`p = 126/42 * 100`

`p = 3 * 100`

`p = 300`

There was a 300% change.