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Question:

A clerk’s weekly salary of $320 is increased to $360. The percent increase is:

A 12.5%
Explaination

Subtract the original salary from the new salary to get the difference in salary: $360 – $320 = $40. Then divide the difference in salary ($40) by the original salary ($320) to determine the percent increase: 40 ÷ 320 = 0.125 = 12.5%.