-35.57% is the change from 866 to 558
Calculation steps:
[( 558 - 866 ) ÷ 866] x 100 = -35.57%
Formula
Percentage change = [(558 - 866) / 866] x 100
Subtract the new number by the original number
558 - 866 = -308
-308 ÷ 866 = -0.3556581986143187
-0.3556581986143187 x 100 = -35.57%