65.12% is the change from 86 to 142
Calculation steps:
[( 142 - 86 ) ÷ 86] x 100 = 65.12%
Formula
Percentage change = [(142 - 86) / 86] x 100
Subtract the new number by the original number
142 - 86 = 56
56 ÷ 86 = 0.6511627906976745
0.6511627906976745 x 100 = 65.12%