To work out the percentage of something, it helps to find out what one percent is first. Watch the video to learn more about calculating percentages. Oo! That looked like it hurt. Oh well ...

To change a percentage to a decimal, divide by 100. Change 48% to a decimal: 48 ÷ 100 = 0.48 To change a decimal to a percentage, multiply by 100. Change 0.67 to a percentage: 0.67 x 100 = 67% Wow!