10 percent of 421 can be written as 20 percent * 421 =
Use the percentage formulae (P% × Y = X) to find out 10% of 421
P is 10, Y is 421, so the equation will be 10% × 421 = X
Percentage calculation with steps:
X = ( 10 * 421 ) / 100
X = 4210 / 100
X = 42.1