63.64% is the change from 66 to 108
Calculation steps:
[( 108 - 66 ) ÷ 66] x 100 = 63.64%
Formula
Percentage change = [(108 - 66) / 66] x 100
Subtract the new number by the original number
108 - 66 = 42
42 ÷ 66 = 0.6363636363636364
0.6363636363636364 x 100 = 63.64%