-5.54% is the change from 866 to 818
Calculation steps:
[( 818 - 866 ) ÷ 866] x 100 = -5.54%
Formula
Percentage change = [(818 - 866) / 866] x 100
Subtract the new number by the original number
818 - 866 = -48
-48 ÷ 866 = -0.05542725173210162
-0.05542725173210162 x 100 = -5.54%