4 percent of 90 can be written as 20 percent * 90 =
Use the percentage formulae (P% × Y = X) to find out 4% of 90
P is 4, Y is 90, so the equation will be 4% × 90 = X
Percentage calculation with steps:
X = ( 4 * 90 ) / 100
X = 360 / 100
X = 3.6