-28.87% is the change from 866 to 616
Calculation steps:
[( 616 - 866 ) ÷ 866] x 100 = -28.87%
Formula
Percentage change = [(616 - 866) / 866] x 100
Subtract the new number by the original number
616 - 866 = -250
-250 ÷ 866 = -0.28868360277136257
-0.28868360277136257 x 100 = -28.87%