-30.8% is the change from 961 to 665
Calculation steps:
[( 665 - 961 ) ÷ 961] x 100 = -30.8%
Formula
Percentage change = [(665 - 961) / 961] x 100
Subtract the new number by the original number
665 - 961 = -296
-296 ÷ 961 = -0.30801248699271594
-0.30801248699271594 x 100 = -30.8%