13500% is the change from 3 to 408
Calculation steps:
[( 408 - 3 ) ÷ 3] x 100 = 13500%
Formula
Percentage change = [(408 - 3) / 3] x 100
Subtract the new number by the original number
408 - 3 = 405
405 ÷ 3 = 135
135 x 100 = 13500%
Example