-30.73% is the change from 960 to 665
Calculation steps:
[( 665 - 960 ) ÷ 960] x 100 = -30.73%
Formula
Percentage change = [(665 - 960) / 960] x 100
Subtract the new number by the original number
665 - 960 = -295
-295 ÷ 960 = -0.3072916666666667
-0.3072916666666667 x 100 = -30.73%