For example what is 30 of 27. The percent value is computed by multiplying the numeric value of the ratio by 100. He explains that x percent of some number y is x multiplied by y and divided by 100.
This program is designed to give users basic math practice with percent calculations.
The formulas below are all mathematical variations of this formula. Add up all percentages below the score plus half the percentage at the score. Then try 125 of 4375 shows that before a 125 reduction it was 50. He explains that x percent of some number y is x multiplied by y and divided by 100.