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% increase and decrease notes Absent Tues /Wed 2 /25,26

% increase and decrease notes Absent Tues /Wed 2 /25,26.

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% increase and decrease notes Absent Tues /Wed 2 /25,26

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  1. % increase and decrease notesAbsentTues/Wed 2/25,26

  2. Shopping vocabulary and setting up ratiosVocabulary1. Wholesale price, regular price, original price: this means this is the original price that an item sells for.2. Retail price: the new price that an item sells for or it is the original price before a sale price is given. 3. Sale: this is a discount that comes off the original price. It is either given in % or in a $ amount.Finding a markup price or mark down price set upnew price - original priceRatio set up with word problems finding %Change between the original price and new priceoriginal price% sentences with word problems What is _____ % of _____unknown=change to decimalMultiplyoriginal price

  3. Price Mark Up Example • Sun Diego is selling board shorts. The wholesale price that they got them for was $15.50. The retail price that they sold them for was $28.75. What was the price markup? $28.75 new price - $15.50 original price $13.25 markup Solution • What is the new price of the board shorts? • The retail price is the new price. $28.75. • What is the original price of the board shorts? • The wholesale price is the original price. $15.50. • What do we do with the 2 different amounts? • We subtract them and find the markup. $13.25 markup

  4. % increase Example • South Coast surf shop buys van shoes at a wholesale price of $25. South Coast sells the shoes for a retail price of $41. What is the % markup for the shoes? $16change $25 original .64 25 16.00 -150 100 -100 0 Solution • What is the new price of the vans? • The retail price is the new price. $41. • What is the original price of the vans? • The wholesale is the original price. $25. • What is the change between the 2 prices? • The change is $16. • How do we set up a ratio using these two prices so we can find the % markup? • Change in price original price 64% markup

  5. % decrease Example • Bennett bought a stroller on sale for $25. The strollers retail price is $75. What is the % discount of the stroller? $50change $75 original .66 75 50.00 -450 500 -450 50 Repeating decimal round to 67% Solution • What is the new price of the stroller? • The new price is the sale price. $25. • What is the original price of the stroller? • The original price is the retail price. $75.00. • What is the change between the 2 prices? • The change is $50. • How do we set up a ratio using these two prices so we can find the % markup? • Change in price original price 67% discount

  6. % increase Example • Find the % increase. 8 is increased to 14. 6 change 8 original .75 8 6.00 -56 40 -40 0 Solution • What is the original #? • The original # is 8. • What is the new #? • The new # is 14. • What is the change between the 2 #’s? • The change is 6. • How do we set up the ratio to find the % increase? • Change in # original # 75% increase

  7. % sentences Example • A soccer ball originally cost $25. Chris bought the ball on sale for 30% off the original price. How much $ was deducted off the ball? x = 30% x 25 what is % multiply price x = .30(25) x = 7.5 or $7.50 Solution • What is the unknown in this problem? • The unknown is how much money was taken off the soccer ball. • What is the % discount? • 30% • What is the original price of the soccer ball? • $25 • What does the word “IS” mean? • IS means =. • What does the word “OF” mean? • OF means multiply. $7.50 was deducted

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