-20.29% is the change from 966 to 770
Calculation steps:
[( 770 - 966 ) ÷ 966] x 100 = -20.29%
Formula
Percentage change = [(770 - 966) / 966] x 100
Subtract the new number by the original number
770 - 966 = -196
-196 ÷ 966 = -0.2028985507246377
-0.2028985507246377 x 100 = -20.29%