4 percent of 12900 can be written as 20 percent * 12900 =
Use the percentage formulae (P% × Y = X) to find out 4% of 12900
P is 4, Y is 12900, so the equation will be 4% × 12900 = X
Percentage calculation with steps:
X = ( 4 * 12900 ) / 100
X = 51600 / 100
X = 516