1. Profit & Loss 04/06/2016 1 04 June 2016

2. Profit & Loss 2 types of question Type 1 - A car was bought for 1200AED and was later sold at a 15% profit, how much was it sold for ? Find 15% and then add it on to 1200AED If it were sold for a 24% loss Find 24% and then take it off the 1200AED

3. Profit & Loss Type 2 – A car was bought for 1200AED and later sold for 1500AED, what is the percentage profit ? Use the format To create a fraction Cancel to simplest form and then change to a percentage Actual Profit (or Loss) Original Amount

4. Profit & Loss A car was bought for 1200AED and later sold for 1400AED, what is the percentage profit ? Actual Profit Original Amount

5. Profit & Loss A cycle was bought for 600AED and later sold for 450AED, what is the percentage loss ? Actual Loss Original Amount

6. Reverse Percentages The original amount is always 100% A reduction of 20% means the new price is 80% of original An increase of 15% means the new price is 115% of original Use the calculator method to find original amount

7. Reverse Percentages eg. In a 25% sale a sofa costs 480AED, how much did it cost before the sale ? 25% reduction means 75% of original i.e. 100% - 25% = 75% So, 480AED  0.75 = 640AED Price before Sale ? Price after Sale £480 ÷ 0.75 x 0.75

8. Reverse Percentages eg. Following a 10% increase petrol now costs 1.20AED per litre, how much did it cost before the increase ? 10% increase means 110% of original So, 1.20AED  1.10 = 1.09AED per litre Price before increase ? New Price £1.20 ÷ 1.10 x 1.10

9. Writing as a Percentage What percentage of cars are Green ? 22 out of 122 were green, so Change to a decimal Then convert to a percentage Car Park Survey ColourFrequency Green22 Silver43 Black57 =18%

10. Session Summary Converting between Fractions Decimals and Percentages Finding a Percentage Profit & Loss Reverse Percentages Writing as a Percentage Next week - Ratio 04/06/2016 10