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9 July, 05:38

The number of students increased from 640 to 768. What is the percent of change?

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Answers (3)
  1. 9 July, 05:49
    0
    The pure numerical increase in this case would be 768 - 640 = 128 students. To find the percent increase this represents, we find first that the fraction of the original value 128 takes up is

    128/640 = 1/5

    As a decimal, 1/5 = 0.2, which we can then multiply by 100 to find our percent increase: 0.2 x 100 = 20%.
  2. 9 July, 06:03
    0
    The pure numerical increase in this case would be 768 - 640 = 128 students. To find the percent increase this represents, we find first that the fraction of the original value 128 takes up is

    128/640 = 1/5

    As a decimal, 1/5 = 0.2, which we can then multiply by 100 to find our percent increase: 0.2 x 100 = 20%.
  3. 9 July, 06:07
    0
    20% should be the correct answer
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