SOLUTION: The electricity costs of a business decreased from $12,000 one year to $10,920 the next. What is the rate of decrease?

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Question 63199: The electricity costs of a business decreased from $12,000
one year to $10,920 the next. What is the rate of decrease?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
The amount of increase is $10,920-$12,000 = -1080.

The rate of decrease = %28amount_of_decrease%29%2F%28original_amount%29
=-1080%2F12000
=-.09
=-9%

R^2 at SCC