-19.25% is the change from 966 to 780
Calculation steps:
[( 780 - 966 ) ÷ 966] x 100 = -19.25%
Formula
Percentage change = [(780 - 966) / 966] x 100
Subtract the new number by the original number
780 - 966 = -186
-186 ÷ 966 = -0.19254658385093168
-0.19254658385093168 x 100 = -19.25%