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30 July, 16:15

The price of a notebook has risen to $3.45 today. Yesterday's price was $3.20. Find the percentage increase. Round your answer to the nearest tenth of a percent.

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  1. 30 July, 16:40
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    7.8%

    Step-by-step explanation:

    Yesterday's price = $3.20

    Today's price = $3.45

    Increase = today's price - yesterday's price

    That's $3.45 - $3.20

    = $0.25

    Percentage increase = increment / yesterday's price x 100%

    That's $0.25/$3.20 x 100%

    0.0781 x 100%

    7.81

    7.8%
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