-29.61% is the change from 966 to 680
Calculation steps:
[( 680 - 966 ) ÷ 966] x 100 = -29.61%
Formula
Percentage change = [(680 - 966) / 966] x 100
Subtract the new number by the original number
680 - 966 = -286
-286 ÷ 966 = -0.29606625258799174
-0.29606625258799174 x 100 = -29.61%