Question

Michelle purchased 25 audio files in january . in February she purchased 40 audio files. what is the percent increase ?

Answer 1

So, first: what is the absolute increase?

The absolute increase is: 40-25=15. So the absolute increase is 15.

Now, 15 is what percentage of 25?

we count this as follows:

$\frac{15}{25}= \frac{3}{5} =0.8$

0.8*100%=80%.

So percent increase is 80%.