Percentage of money values quiz for students. As seen earlier, percentages denote proportions in a hundred. The percentage sign is written as %. Percentages are often used in solving money word problems. In this case, there are values of money in $ dollars and students are asked to find the value of a given percentage. This test is a MCQ, once you figure out the correct answer, select it from the list of choices. Solve money and percentages problems and gain math skills for 3rd, 4th, 5th and 6th grades.