1 percent of 420 can be written as 20 percent * 420 =
Use the percentage formulae (P% × Y = X) to find out 1% of 420
P is 1, Y is 420, so the equation will be 1% × 420 = X
Percentage calculation with steps:
X = ( 1 * 420 ) / 100
X = 420 / 100
X = 4.2