Question

What is the percent change formula?

Answer 1

The percentage change formula is:

`(X_2 / X_1 - 1) * 100`

where `X_1` is the original value and `X_2` is the final value.

Example:

If Google's stock price increases from $500 to $575, it has increased by 15%.

`(575 / 500 - 1) * 100 = 15%`