-10.09% is the change from 961 to 864
Calculation steps:
[( 864 - 961 ) ÷ 961] x 100 = -10.09%
Formula
Percentage change = [(864 - 961) / 961] x 100
Subtract the new number by the original number
864 - 961 = -97
-97 ÷ 961 = -0.10093652445369407
-0.10093652445369407 x 100 = -10.09%