-1.93% is the change from 883 to 866
Calculation steps:
[( 866 - 883 ) ÷ 883] x 100 = -1.93%
Formula
Percentage change = [(866 - 883) / 883] x 100
Subtract the new number by the original number
866 - 883 = -17
-17 ÷ 883 = -0.01925254813137033
-0.01925254813137033 x 100 = -1.93%