318.83% is the change from 154 to 645
Calculation steps:
[( 645 - 154 ) ÷ 154] x 100 = 318.83%
Formula
Percentage change = [(645 - 154) / 154] x 100
Subtract the new number by the original number
645 - 154 = 491
491 ÷ 154 = 3.188311688311688
3.188311688311688 x 100 = 318.83%