-18.59% is the change from 866 to 705
Calculation steps:
[( 705 - 866 ) ÷ 866] x 100 = -18.59%
Formula
Percentage change = [(705 - 866) / 866] x 100
Subtract the new number by the original number
705 - 866 = -161
-161 ÷ 866 = -0.1859122401847575
-0.1859122401847575 x 100 = -18.59%