24.69% is the change from 81 to 101
Calculation steps:
[( 101 - 81 ) ÷ 81] x 100 = 24.69%
Formula
Percentage change = [(101 - 81) / 81] x 100
Subtract the new number by the original number
101 - 81 = 20
20 ÷ 81 = 0.24691358024691357
0.24691358024691357 x 100 = 24.69%