-78.87% is the change from 866 to 183
Calculation steps:
[( 183 - 866 ) ÷ 866] x 100 = -78.87%
Formula
Percentage change = [(183 - 866) / 866] x 100
Subtract the new number by the original number
183 - 866 = -683
-683 ÷ 866 = -0.7886836027713626
-0.7886836027713626 x 100 = -78.87%