SOLUTION: How do you find a percentage increase and decrease?

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Question 760949: How do you find a percentage increase and decrease?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

When finding the percent increase, we take the absolute value of the difference and divide it by the original value. The resulting decimal is then converted to a percent.
Example 1:
Ann works in a supermarket for $10.00 per hour.
If her pay is increased to $12.00, then what is her percent increase in pay?
Solution:
%2812-10%29%2F10=2%2F10=0.20=20%.
Answer: The percent increase in Ann's pay is 20%.

When finding the percent decrease, we take the absolute value of the difference and divide it by the original value. The resulting decimal is then converted to a percent.
Example 2:

The staff at a company went from 40 to 29 employees.
What is the percent decrease in staff?
Solution:
%2840-29%29%2F40=11%2F40=0.275=27.5%
Answer: There was a 27.5% decrease in staff.
Increase or decrease, that makes Percent change and
Percent+Change=%28+%28New+Amount+-+Original+Amount%29%2FOriginal+Amount%29100