1. 1 Finding Percentages of a Quantity. Press Ctrl-A ©2009 – Not to be sold/Free to use Stage 4 -Year 7

2. 2 6.3 Finding Percentages of Quantities (1/3) Some Percentages YOU must know!!! PercentageFractionDecimal 33 % 1313 1313 3.3. 66 % 2323 2323 6.6. 12 % 1212 1818 0.125 37 % 1212 3838 0.375 50% 1212 0.5 25% 1414 0.25 Concentration WebWeb | FlashFlash End of Page

3. 3 6.3 Finding Percentages of Quantities (2/3) 1. Find 66 % of $120 2323 x 2323 120 1 40 = 2 x 40= $80 2. Find 50% of 140 tonne x 1212 140 1 70 = 70 tonne = = End of Page

4. 4 6.3 Finding Percentages of Quantities (3/3) 1. Find 37 % of $240. 1212 x 240 3838 = 3 ÷ 8 x 240= $90 2. Find 17 % of 2 000 kg. = x 2000 17.5 100 = 17.5 ÷ 100 x 2 000 = 350 kg Using a Calculator 1212 = End of Show