81 percent of 1 can be written as 20 percent * 1 =
Use the percentage formulae (P% × Y = X) to find out 81% of 1
P is 81, Y is 1, so the equation will be 81% × 1 = X
Percentage calculation with steps:
X = ( 81 * 1 ) / 100
X = 81 / 100
X = 0.81