-53.35% is the change from 866 to 404
Calculation steps:
[( 404 - 866 ) ÷ 866] x 100 = -53.35%
Formula
Percentage change = [(404 - 866) / 866] x 100
Subtract the new number by the original number
404 - 866 = -462
-462 ÷ 866 = -0.5334872979214781
-0.5334872979214781 x 100 = -53.35%