93.83% is the change from 81 to 157
Calculation steps:
[( 157 - 81 ) ÷ 81] x 100 = 93.83%
Formula
Percentage change = [(157 - 81) / 81] x 100
Subtract the new number by the original number
157 - 81 = 76
76 ÷ 81 = 0.9382716049382716
0.9382716049382716 x 100 = 93.83%