81.82% is the change from 66 to 120
Calculation steps:
[( 120 - 66 ) ÷ 66] x 100 = 81.82%
Formula
Percentage change = [(120 - 66) / 66] x 100
Subtract the new number by the original number
120 - 66 = 54
54 ÷ 66 = 0.8181818181818182
0.8181818181818182 x 100 = 81.82%