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Percent change 15 books to 21 books
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1 vote
Percent change

15 books to 21 books

User Byrne
by
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1 Answer

2 votes
1st step is to find the difference:
21 - 15 = 6 books

now divide the difference by the original quantity:

6 / 15 = 0.4

multiply that by 100 to get the percentage:

0.4 x 100 = 40% increase
User Sandric
by
6.6k points
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