80.23% is the change from 86 to 155
Calculation steps:
[( 155 - 86 ) ÷ 86] x 100 = 80.23%
Formula
Percentage change = [(155 - 86) / 86] x 100
Subtract the new number by the original number
155 - 86 = 69
69 ÷ 86 = 0.8023255813953488
0.8023255813953488 x 100 = 80.23%