Respuesta :

wolfiemath
Multiply the number by the percent (e.g. 87 * 68 = 5916)

Divide the answer by 100 (Move decimal point two places to the left) (e.g. 5916/100 = 59.16)

Round to the desired precision (e.g. 59.16 rounded to the nearest whole number = 59)

multiply the percent to the number (but you have to change the percent into a decimal),

for example 10 percent of 100 is .10x100 which is 10

if its 3 percent off of 100 it would be .03x30 which is .90

if its 25 percent off of 200 it would be .25x200 which is 50