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Math Help - Percentage change between percentages

  1. #1
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    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%?
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  2. #2
    Junior Member slovakiamaths's Avatar
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  3. #3
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    Thanks slovakiamaths!
    I know, i know.... i suck at math!!
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