-81.57% is the change from 966 to 178
Calculation steps:
[( 178 - 966 ) ÷ 966] x 100 = -81.57%
Formula
Percentage change = [(178 - 966) / 966] x 100
Subtract the new number by the original number
178 - 966 = -788
-788 ÷ 966 = -0.8157349896480331
-0.8157349896480331 x 100 = -81.57%