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 59220: 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 funmath(2873) About Me  (Show Source):
You can put this solution on YOUR website!
The electricity costs of a business decreased from $12,000 one year to $10,920 the next. What is the rate of decrease?
%2810920-12000%29%2F12000
-1080%2F12000
-.09
:
If you need this in percentage, multiply this by 100%
-.09%28100%29%
-9%
The negative indicates a 9% decrease. If you say decrease, you don't need to say it was negative.
:
Happy Calculating!!!