-9.89% is the change from 961 to 866
Calculation steps:
[( 866 - 961 ) ÷ 961] x 100 = -9.89%
Formula
Percentage change = [(866 - 961) / 961] x 100
Subtract the new number by the original number
866 - 961 = -95
-95 ÷ 961 = -0.09885535900104059
-0.09885535900104059 x 100 = -9.89%