Uses of Percents  Retail: “50% Off!”  Politics: “With 25% of precincts in…”  Science: “A 7% acid solution”  Finance: “The market closed down 1.5%”  Business: “Profits are up 10%”  Economics: “Unemployment fell to 4.2%”

Convert Fractions to Decimals Divide numerator by denominator Check decimal place Examples 7/8 = 7 ÷ 8 = /100 = 13 ÷ 100 = /1000 = 13 ÷ 1000 = 0.013

Convert Decimals to Percents 100% = 1 (the whole thing) Multiply decimal x 100% Examples = x 100% = 87.5% 0.13 = 0.13 x 100% = 13% = x 100% = 1.3%

Quiz: Convert to Percents ¾ = ?% 5/6 = ?% 8/9 = ?% 25/10,000 = ?% 15/5 = ?%

Quiz: Convert to Percents ¾ = ?% ¾ = ?% 5/6 = ?% 5/6 = ?% 8/9 = ?% 8/9 = ?% 25/10,000 = ?% 25/10,000 = ?% 15/5 = ?% 15/5 = ?%