Obtain the total and the percentage amount. For this example, the percentage is 35 percent and the total amount is 50.
Multiply the total and the percentage amount together. For this example, multiplying 35 by 50 equals 1,750.
Divide the product from the previous step by 100. For this example, 1,750 divided by 100 equals 17.50.
Subtract the quotient calculated in the last step from the total. For this example, 50 less 17.50 is 32.50.