56.1% is the change from 82 to 128
Calculation steps:
[( 128 - 82 ) ÷ 82] x 100 = 56.1%
Formula
Percentage change = [(128 - 82) / 82] x 100
Subtract the new number by the original number
128 - 82 = 46
46 ÷ 82 = 0.5609756097560976
0.5609756097560976 x 100 = 56.1%