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28 April, 11:47

If an item that originally cost $19 is increased to $21, what is the percentage of increase in the item?

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  1. 28 April, 12:12
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    10.53%

    Step-by-step explanation:

    Percentage change can be found using the formula ...

    percent change = ((new value) - (old value)) / (old value) * 100%

    For your numbers, this is ...

    percent change = (($21 - $19) / $19) * 100% = 2/19*100% ≈ 10.53%

    The increase is about 10.53%.
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