Presentation on theme: "Bell Work From 5 to = 5 40% decrease"— Presentation transcript:
1 Bell Work From 5 to 7 2 0.4 = 5 40% decrease A percent of change tells how much a quantity has increased or decreased relative to the original amount.Movie tickets used to cost $5, now cost $7.Find the percent of change.From 5 to 7Change decimal to a %20.4=540% decrease
2 Discounts, MarkupsTax andTipTAKE OUT A CALCULATOR
3 Markup vs. Discount Markup A retail store buys items at wholesale prices. To cover expenses and make a profit, they sell items at higher retail prices. The extra amount is called the markup.DiscountWhen an item is on sale, the store is selling the item for less, so this is called discount.
4 Percent of Mark-Up From $10 to $25 Change decimal to a percent Find the percent of markup for the $10wholesale shirt the store sells for $25.Percent Mark-upPercent ChangeFrom $10 to $2515Change decimal to a percent=1.510150%Markup
5 Percent of Discount From $28 to $21 A $28 book is on sale for $21. Find the % discount.Percent DiscountPercent ChangeFrom $28 to $217Change decimal to %0.25=28Discount
6 Markup & Discount$25.99 sweater marked up 20%$31.25 toy discounted 33%
7 Total Purchase Price $100 + $7.00 = $107 Calculating Sales TaxSales tax is calculated by multiplying theretail price of an item by the sales tax ratefor an area. METHOD 1Example: Shoes $100Tax Rate 7%Sales Tax $100 x 0.07 = $7.00Total Purchase Price $100 + $7.00 = $107
8 Both methods give you the same answer! Calculating Sales TaxSales tax is calculated by multiplying theretail price of an item by the sales tax ratefor an area.METHOD 2Example: Shoes $100Tax Rate 7%Add 7% to 100% since that includes the total price and the tax. Find 107% of $100.= $107Find total $100 x 107%Multiply $100 x 1.07Both methods give you the same answer!
9 Add the sales tax to the price of the car. Calculating Sales TaxThe sales tax in Ohio is 8.5%. Your family isbuying a new car for $20,000. What will bethe total cost of the car? METHOD 1Example: Car $20,000Tax Rate 8.5%Sales Tax $20,000 x = $1,700Add the sales tax to the price of the car.Total Purchase Price $20,000 + $1700= $21,700
10 Multiply $20,000 x 1.085 Calculating Sales Tax = $21,700 The sales tax in Ohio is 8.5%. Your family isbuying a new car for $20,000. What will bethe total cost of the car?METHOD 2Add 8.5% to 100%Add 8.5% to 100% since that includes the total price and the car and tax. Find 108.5% of $20,000.Multiply $20,000 x 1.085= $21,700Both methods give you the same answer!
11 Sales TaxA family purchased a DVD player for $200. The sales tax rate was 7%. What was the total cost of the purchase?Method 2Multiply the price by 107% since 7% is added to the cost.$200 x 107% = total cost$200 x 1.07 = $214.00Method 1Add sales tax to the price:$200 x 7% = tax$200 x .07 = $14.00 tax$ = $214.00So, the total cost was $
12 Calculating Sales TaxA family purchased a pool table for $825. The sales tax rate was 6%. What was the total cost?Method 1Add sales tax to the price:$825 x 6% = tax$825 x 0.06 = $49.50$825 + $49.50 = $874.50Method 2Multiply the price by 106% since 6% is added to the cost.$825 x 106% = total cost$825 x 1.06 = $874.50So, the total cost of the purchase was $
13 = $3.7275 Put your answer in a sentence: Find 15% of 24.85 Leaving a TipYou and a friend go to lunch. The check comes to $ Figure out how much you should tip if you want to leave 15%.Find 15% of 24.85Change 15% to a decimal= 0.15 x 24.85= $3.7275Put your answer in a sentence:The tip that should be left is $3.73