-27.48% is the change from 866 to 628
Calculation steps:
[( 628 - 866 ) ÷ 866] x 100 = -27.48%
Formula
Percentage change = [(628 - 866) / 866] x 100
Subtract the new number by the original number
628 - 866 = -238
-238 ÷ 866 = -0.2748267898383372
-0.2748267898383372 x 100 = -27.48%