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A customer pays $18 for a DVD that originally costs $20. What is the percent decrease in the cost of the DVD?

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wegnerkolmp2741o

Answer:

  = 10 percent decrease

Step-by-step explanation:

Percent decrease = (original - new)/original * 100 percent

The original price was 20 and the new price is 18

                              = (20-18)/20 * 100 percent

                               =2/20 * 100 percent

                               = 1/10 * 100 percent

                               = 10 percent decrease

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