39.35% is the change from 155 to 216
Calculation steps:
[( 216 - 155 ) ÷ 155] x 100 = 39.35%
Formula
Percentage change = [(216 - 155) / 155] x 100
Subtract the new number by the original number
216 - 155 = 61
61 ÷ 155 = 0.3935483870967742
0.3935483870967742 x 100 = 39.35%