To find percent increase:
1) First, find how much the increase was. Subtract the original number from the new number:
60 pairs - 50 pairs = 10
2) Find the percent increase. Divide the increase (10) by the original number (50). Multiply the decimal you get by 100% to get the percentage.
[tex] \frac{10}{50} \times 100\% \\
= 0.2 \times 100\%\\
= 20\%[/tex]
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Answer: 20% increase
