This award-winning series helps students to build confidence in their ability to "do math" and develop the knowledge and skills required to become mathematically literate. In this lesson percent problems are defined using three examples. The first type of problem asks "twelve percent of forty-five is what?", and would be used to compute a sales commission. The second type asks "what percent of forty-nine is fourteen?", to report the results of a survey. The third type asks "forty percent of what number is eighteen?" to find the number of questions on a test if one knew the percentage and the number of right answers. Other practical uses such as discounts, sales tax and salary increases are looked at. Students will learn to solve a percentage problem to compute a sales commission and report the results of a survey. Plus the use of everyday problems involving percents.