# Math Help - Percentage change between percentages

1. ## Percentage change between percentages

Hi all,
Let's say that 20% of the population had a computer in 1990 and 35% of the population had a computer in 2000. What is the percentage change between 1990 and 2000?
Is it [(35-20)/20]*100=75% or 35-20=15%?

2. 15%

3. Thanks slovakiamaths!
I know, i know.... i suck at math!!