SOLUTION: a package of poster board usually sells for $8.40. This week the package is on sale for $6.30. What is the percent of discount?

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Question 256198: a package of poster board usually sells for $8.40. This week the package is on sale for $6.30. What is the percent of discount?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(8.40-6.30)/8.40=2.10/8.40=.25 or 25% is the discount.