3 percent of 21 can be written as 20 percent * 21 =
Use the percentage formulae (P% × Y = X) to find out 3% of 21
P is 3, Y is 21, so the equation will be 3% × 21 = X
Percentage calculation with steps:
X = ( 3 * 21 ) / 100
X = 63 / 100
X = 0.63