The math to determine a percentage is to divide the numerator the number on top of the fraction by the denominator the number on the bottom of the fraction then multiply the answer by 100. 120 100 20 and that means a 20 rise. There are 150 students in a class.
Finally convert the fraction to a percent by moving the decimal two places to the right and adding a percent sign.
Finally convert the fraction to a percent by moving the decimal two places to the right and adding a percent sign. Divide new value by old value. To convert a percent to a fraction divide by 100 and reduce the fraction if possible. Written using the formula.