-8.75% is the change from 949 to 866
Calculation steps:
[( 866 - 949 ) ÷ 949] x 100 = -8.75%
Formula
Percentage change = [(866 - 949) / 949] x 100
Subtract the new number by the original number
866 - 949 = -83
-83 ÷ 949 = -0.0874604847207587
-0.0874604847207587 x 100 = -8.75%