325.81% is the change from 155 to 660
Calculation steps:
[( 660 - 155 ) ÷ 155] x 100 = 325.81%
Formula
Percentage change = [(660 - 155) / 155] x 100
Subtract the new number by the original number
660 - 155 = 505
505 ÷ 155 = 3.2580645161290325
3.2580645161290325 x 100 = 325.81%