#  Work with a partner and complete the problem handed out to you regarding the prices of tennis racquets. › Recall what we learned in the previous lesson.

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 Work with a partner and complete the problem handed out to you regarding the prices of tennis racquets. › Recall what we learned in the previous lesson when calculating percents of a whole number.

 When an item is on sale for 20% off, we say that there is a discount of 20%  A discount of 20% on an item for sale means that you pay: › 100% - 20% = 80% of the regular price. Example  A video game is marked with a discount of 30%. Its regular price is \$27.99. What is the price after the discount? › The sale price of the video game is: 100% - 30% = 70% of \$27.99 › 70% of \$27.99 = 0.7 x \$27.99 = \$19.59

Example  A video game is marked with a discount of 30%. Its regular price is \$27.99. What is the price after the discount? › 70% of \$27.99 = 0.7 x \$27.99 = \$19.59  This is the price (\$19.59) before sales tax is added. The Harmonized sales tax (HST) is 13% (provincial – 8%, federal – 5%).  So, the price you pay for the video game is: › \$19.59 + 13% of \$19.59 › = 113% of \$19.59 › = 1.13 x \$19.59 › = \$22.14

 Many salespeople earn commission, which is a percent of the money received from the sale of the item. Example  Mac Jennings, a real estate agent, sells a home for \$219 000. He earns 2.5% commission. How much does Mac earn on this sale? › Mac will earn 2.5% of \$219 000. › 0.025 x \$219 000 = \$5475

1.A car dealership offers two choices of discount on a car with a sticker price of \$25 000. Choice A: \$4000 rebate Choice B: 20% discount Which is a better deal for the customer? Justify your answer. 2.A new house was purchased for \$304 000. After 3 years, its market value had increased by 28%. What is the new market value of the house?

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