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 99194: 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 checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(12000-10920)/12000=1080/12000=.09=9% rate of annual decrease.