-29.79% is the change from 866 to 608
Calculation steps:
[( 608 - 866 ) ÷ 866] x 100 = -29.79%
Formula
Percentage change = [(608 - 866) / 866] x 100
Subtract the new number by the original number
608 - 866 = -258
-258 ÷ 866 = -0.2979214780600462
-0.2979214780600462 x 100 = -29.79%