113.55% is the change from 155 to 331
Calculation steps:
[( 331 - 155 ) ÷ 155] x 100 = 113.55%
Formula
Percentage change = [(331 - 155) / 155] x 100
Subtract the new number by the original number
331 - 155 = 176
176 ÷ 155 = 1.135483870967742
1.135483870967742 x 100 = 113.55%