4 percent of 421 can be written as 20 percent * 421 =
Use the percentage formulae (P% × Y = X) to find out 4% of 421
P is 4, Y is 421, so the equation will be 4% × 421 = X
Percentage calculation with steps:
X = ( 4 * 421 ) / 100
X = 1684 / 100
X = 16.84