4 percent of 45 can be written as 20 percent * 45 =
Use the percentage formulae (P% × Y = X) to find out 4% of 45
P is 4, Y is 45, so the equation will be 4% × 45 = X
Percentage calculation with steps:
X = ( 4 * 45 ) / 100
X = 180 / 100
X = 1.8