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3 January, 14:49

The price of a cup of coffee has dropped to $2.20 today. Yesterday's price was $2.55. Find the percentage decrease. Round your answer to the nearest tenth of a percent.

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  1. 3 January, 18:30
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    Percentage decrease = (original number - new number) / original number ... * 100

    percentage decrease = (2.55 - 2.20) / 2.55 ... * 100

    0.35 / 2.55 ... * 100

    0.137 * 100

    13.7% decrease <===
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