-4.31% is the change from 905 to 866
Calculation steps:
[( 866 - 905 ) ÷ 905] x 100 = -4.31%
Formula
Percentage change = [(866 - 905) / 905] x 100
Subtract the new number by the original number
866 - 905 = -39
-39 ÷ 905 = -0.0430939226519337
-0.0430939226519337 x 100 = -4.31%