-62.5% is the change from 176 to 66
Calculation steps:
[( 66 - 176 ) ÷ 176] x 100 = -62.5%
Formula
Percentage change = [(66 - 176) / 176] x 100
Subtract the new number by the original number
66 - 176 = -110
-110 ÷ 176 = -0.625
-0.625 x 100 = -62.5%
Example