Represent and use the percent equation

• Percent equation


  Part (amount) = part (%) of whole (amount)
• Represent and use the percent equation

  1. Change decimals/fractions to percents by multiplying by 100%

  2. Change percents to decimals/fractions by dividing by 100
• Percent equations


  • Commission ($) = commission (%) of total sales ($)
  • Tax ($) = tax (%) of selling price ($)
  • Profit($)=profit (%) of purchase price ($)
• Percent problems


  • Find the percent
  • Find the part
  • Find the whole