Algebra 1 Companion Book, Vol 1 – Summer Edition

2.2.5 Percent Increase and Decrease (continued) Example 3 Discounts

A discount is an amount by which an original price is reduced (possibly due to a sale or a coupon). The final price for a discounted item is the original price minus the discount. Discounts, which are often a percent of the original price, are a common application of percent change.

Example 4 Markups

A markup is an amount by which a wholesale cost is increased. The final price (selling price) for an item after markup is the original price (wholesale cost) plus the markup. Markups, which are often a percent of the original price, are a common application of percent change.

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