1. Section 7.5

2. 1. 2.5% of what number is 75? 2. What percent of 25 is 4? 3. If you buy a shirt that was originally $45 but it is on clearance for 25% off, what is your total? (Assume no sales tax!) 75 whole 2.5 100 = Whole = 3,000 4 25 x 100 = x =16% $45 x.25 = $11.25 $45 – 11.25 = $33.75

3.  Or think  percent 100 Amount of change Original amount =

4.  Wholesale price: the price that the store pays for an item  Retail price: the price that you (the consumer) pay for the item  Mark-up rate: the % that an item increases in value  Discount rate: the % that an item decreases in value.

5.  The wholesale price is $84 and the markup rate is 12.5%. What is the retail price? percent 100 Amount of change Original amount = 12.5 100 x - $84 $84 = $1050= 100(x - 84) $1050= 100x – 8400 $9450 = 100x x = $94.50

6.  The wholesale price is $84 and the markup rate is 12.5%. What is the retail price? $84 *.125 = $10.50 $84.00 + 10.50 = $94.50

7.  Find the sale price when the original price is $84 and the discount rate is 12.5%. $84 *.125 = $10.50 $84.00 – 10.50 = $73.50