-30.78% is the change from 965 to 668
Calculation steps:
[( 668 - 965 ) ÷ 965] x 100 = -30.78%
Formula
Percentage change = [(668 - 965) / 965] x 100
Subtract the new number by the original number
668 - 965 = -297
-297 ÷ 965 = -0.3077720207253886
-0.3077720207253886 x 100 = -30.78%