392.9% is the change from 155 to 764
Calculation steps:
[( 764 - 155 ) ÷ 155] x 100 = 392.9%
Formula
Percentage change = [(764 - 155) / 155] x 100
Subtract the new number by the original number
764 - 155 = 609
609 ÷ 155 = 3.9290322580645163
3.9290322580645163 x 100 = 392.9%