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Ch. 5-7 Percent of change

Ch. 5-7 Percent of change. Ch. 5-7. Vocabulary Percent of change: a ratio that compares the change in quantity to the original amount. Percent of increase: when the new amount is greater than the original Percent of decrease: when the new amount is less than the original

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Ch. 5-7 Percent of change

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  1. Ch. 5-7 Percent of change

  2. Ch. 5-7 Vocabulary • Percent of change: a ratio that compares the change in quantity to the original amount. • Percent of increase: when the new amount is greater than the original • Percent of decrease: when the new amount is less than the original • Markup: the increase in the price • Discount: when regular price is reduced

  3. Percent of change = amount of change original amount Original: 12, new: 9 = 12-9 12 =0.25 Percent of decrease is 25% Original: 5, new: 6, find percent of change. 20% increased. Ch. 5-7 Percent of change

  4. Find the selling price Selling price = cost + markup rate The cost of roller blades is $60, 35% markup, find the selling price. Markup rate = $60 x 35% = $60 x 0.35 = $21 Selling price =$60+$21 =$81 Ch. 5-7 Percent of change

  5. Find the selling price Selling price = cost + markup rate Cost of jeans: $25, 45% markup, find the selling price. Markup rate = $25 x 45% = $25 x 0.45 = $11.25 Selling price =$25+$11.25 =$36.25 Ch. 5-7 Percent of change

  6. Find the Markup Rate Markup Rate = Selling price - cost cost Cost of jeans: $25, sell for $36.25, find the markup rate. = 36.25-25 25 = 0.45 = 45% The markup rate is 45% Ch. 5-7 Percent of change

  7. Find the Markup Rate Markup Rate Selling price - cost cost Find the markup rate on a $60 jacket that sells for $75. = 75-60 60 = 0.25 = 25% The markup rate is 25% Ch. 5-7 Percent of change

  8. Find the Sale Price Sale Price Selling price - discount Snowskate: $95, 35% off, find the sale price Amount of discount: =$95*35% =$33.25 Sale price: = $95-$33.25 =$61.75 The Sale price is $61.75 Ch. 5-7 Percent of change

  9. Find the Sale Price Sale Price Selling price - discount Television: $675.50, 35% off, find the sale price Amount of discount: =$675.50 x 35% =$236.43 (round to the nearest 100th) Sale price: =$675.50-$236.43 =$439.08 The Sale price is $439.08 Ch. 5-7 Percent of change

  10. Find the Price including taxes: Selling price + taxes Book bag: $15, tax rate is 6.5%, find the price after taxes. Taxes: =$15 x 6.5% =$0.98 (round to the nearest 100th) Price after taxes: =$15 + $0.98 =$15.98 The taxed price is $15.98 Ch. 5-7 Percent of change

  11. Find the Price including taxes Selling price + taxes Car: $5000, tax rate is 6.5%, find the price after taxes. Taxes: =$5000 x 6.5% =$325 Price after taxes: =$5000 + 325 =$5325 The taxed price is $5,325 Ch. 5-7 Percent of change

  12. Estimate the Price round 21% to 20% Original: $30, markup: 21%, estimate selling price. =$30 x 20% =$6 Selling price: =$30+$6 =$36 The Selling price is about $36 Ch. 5-7 Percent of change

  13. Estimate the Price round $59.99 to $60 Original: $59.99, Sale: 40%, estimate selling price. =$60 x 40% =$24 Discounted price: =$60-$24 =$36 The discounted price is about $36 Ch. 5-7 Percent of change

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