-89.73% is the change from 876 to 90
Calculation steps:
[( 90 - 876 ) ÷ 876] x 100 = -89.73%
Formula
Percentage change = [(90 - 876) / 876] x 100
Subtract the new number by the original number
90 - 876 = -786
-786 ÷ 876 = -0.8972602739726028
-0.8972602739726028 x 100 = -89.73%