319.48% is the change from 154 to 646
Calculation steps:
[( 646 - 154 ) ÷ 154] x 100 = 319.48%
Formula
Percentage change = [(646 - 154) / 154] x 100
Subtract the new number by the original number
646 - 154 = 492
492 ÷ 154 = 3.1948051948051948
3.1948051948051948 x 100 = 319.48%