# What is the percent change of 80 to 100?

Oct 27, 2015

25% change

#### Explanation:

You take how much was added and divide that by how much you originally had. So in this question, from $80$ to $100$ was a change of $20$, so we use the equation of (change of value) / (original value).

Change of value: $100 - 80 = 20$
Original value: $80$
Final value: $100$

Using the equation, $\frac{20}{80}$ we get $0.25$ and multiply that by $100$ to get 25%.