20.93% is the change from 86 to 104
Calculation steps:
[( 104 - 86 ) ÷ 86] x 100 = 20.93%
Formula
Percentage change = [(104 - 86) / 86] x 100
Subtract the new number by the original number
104 - 86 = 18
18 ÷ 86 = 0.20930232558139536
0.20930232558139536 x 100 = 20.93%