642 percent of 1 can be written as 20 percent * 1 =
Use the percentage formulae (P% × Y = X) to find out 642% of 1
P is 642, Y is 1, so the equation will be 642% × 1 = X
Percentage calculation with steps:
X = ( 642 * 1 ) / 100
X = 642 / 100
X = 6.42