-13.23% is the change from 998 to 866
Calculation steps:
[( 866 - 998 ) ÷ 998] x 100 = -13.23%
Formula
Percentage change = [(866 - 998) / 998] x 100
Subtract the new number by the original number
866 - 998 = -132
-132 ÷ 998 = -0.13226452905811623
-0.13226452905811623 x 100 = -13.23%