19.35% is the change from 155 to 185
Calculation steps:
[( 185 - 155 ) ÷ 155] x 100 = 19.35%
Formula
Percentage change = [(185 - 155) / 155] x 100
Subtract the new number by the original number
185 - 155 = 30
30 ÷ 155 = 0.1935483870967742
0.1935483870967742 x 100 = 19.35%