2. 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%”

3. Convert Fractions to Decimals Divide numerator by denominator Check decimal place Examples 7/8 = 7 ÷ 8 = 0.875 13/100 = 13 ÷ 100 = 0.13 13/1000 = 13 ÷ 1000 = 0.013

4. Convert Decimals to Percents 100% = 1 (the whole thing) Multiply decimal x 100% Examples 0.875 = 0.875 x 100% = 87.5% 0.13 = 0.13 x 100% = 13% 0.013 = 0.013 x 100% = 1.3%

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

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