-18.36% is the change from 866 to 707
Calculation steps:
[( 707 - 866 ) ÷ 866] x 100 = -18.36%
Formula
Percentage change = [(707 - 866) / 866] x 100
Subtract the new number by the original number
707 - 866 = -159
-159 ÷ 866 = -0.1836027713625866
-0.1836027713625866 x 100 = -18.36%