95.06% is the change from 81 to 158
Calculation steps:
[( 158 - 81 ) ÷ 81] x 100 = 95.06%
Formula
Percentage change = [(158 - 81) / 81] x 100
Subtract the new number by the original number
158 - 81 = 77
77 ÷ 81 = 0.9506172839506173
0.9506172839506173 x 100 = 95.06%