SOLUTION: a big - screen tv that perviously sold fo 2,400 has been marked down to 2,040 what is the percent of decrease

Question 874038: a big - screen tv that perviously sold fo 2,400 has been marked down to 2,040 what is the percent of decrease

Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
old price = 2400
new price = 2040
difference = 2400 - 2040 = 360
difference divided by old price = 360 / 2400 = .15
that is the rate of the difference.
the percent of the difference is the rate of the difference * 100%
the percent of the difference = .15 * 100% = 15%
since the new price is less than the old price, that is the percent of the decrease.

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