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Basic Find the total cost. $120 G-shock, 6% sales tax t = percent × whole t = .06 × 120 POD Advanced 5 Find the percent markup. Foot Locker buys a pair of KD VII’s for $85. They sell them for $114.75. What is the percent markup? m = percent × whole t = $7.20 $29.75 = p × 85 $120 + $7.20 = $127.20 p = .35 The markup is 35% Basic Find the total cost. POD Advanced 6 $164.95 Uggs, 5.75% sales tax t = percent × whole t = .0575 × 164.95 Find the sales tax. Gracie paid $55.75 for a manicure and pedicure. The cost before taxes was $52.50. What is the percent of sales tax? t = percent × whole t = $9.48 $3.25 = p × $52.50 $164.95 + $9.48 = $174.43 p = .0619 The sales tax is 6.2% Discount Discount or markdown is the amount by which the regular price of an item is reduced. The sale price is the regular price minus the discount. Example 1 A DVD normally costs $22. This week it is on sale for 25% off the original price. What is the sale price of the DVD? Method 1: Subtract the discount from the regular price Turn 25% into a decimal Let d = discount d = percent × whole d = 0.25 × 22 d = 5.50 Subtract discount from cost. $22-$5.50 = $16.50 Example 1 A DVD normally costs $22. This week it is on sale for 25% off the original price. What is the sale price of the DVD? Method 2: Subtract the percent from 100% 100% − 25% = 75% Let s = sale price S = 0.75 × 22 S = $16.50 Whiteboard time A shirt is regularly priced at $42. It is on sale for 15% off of the regular price. What is the sale price of the shirt? 100% − 15% = 85% S = 0.85 × 42 S = $35.70 Whiteboard time A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? d = .35 × 69 d = 24.15 69 − 24.15 = 44.85 1.07 × 44.85 = $47.99 Whiteboard time A CD that has a regular price of $15.50 is on sale at a 25% discount. What is the sale price with 6.5% sales tax. d = .25 × 15.50 d = 3.88 15.50 − 3.88 = 11.62 1.065 × 11.62 = $12.38 Whiteboard time A cell phone is on sale for 30% off. If the sale price is $239.89, what is the original price. Remember 239.89 = 0.7 × w ÷0.7 ÷0.7 $342.70 = w part = percent × whole