310.97% is the change from 155 to 637
Calculation steps:
[( 637 - 155 ) ÷ 155] x 100 = 310.97%
Formula
Percentage change = [(637 - 155) / 155] x 100
Subtract the new number by the original number
637 - 155 = 482
482 ÷ 155 = 3.109677419354839
3.109677419354839 x 100 = 310.97%