-89.66% is the change from 861 to 89
Calculation steps:
[( 89 - 861 ) ÷ 861] x 100 = -89.66%
Formula
Percentage change = [(89 - 861) / 861] x 100
Subtract the new number by the original number
89 - 861 = -772
-772 ÷ 861 = -0.8966318234610917
-0.8966318234610917 x 100 = -89.66%