-3.35% is the change from 896 to 866
Calculation steps:
[( 866 - 896 ) ÷ 896] x 100 = -3.35%
Formula
Percentage change = [(866 - 896) / 896] x 100
Subtract the new number by the original number
866 - 896 = -30
-30 ÷ 896 = -0.033482142857142856
-0.033482142857142856 x 100 = -3.35%