-65.63% is the change from 192 to 66
Calculation steps:
[( 66 - 192 ) ÷ 192] x 100 = -65.63%
Formula
Percentage change = [(66 - 192) / 192] x 100
Subtract the new number by the original number
66 - 192 = -126
-126 ÷ 192 = -0.65625
-0.65625 x 100 = -65.63%