-89.68% is the change from 872 to 90
Calculation steps:
[( 90 - 872 ) ÷ 872] x 100 = -89.68%
Formula
Percentage change = [(90 - 872) / 872] x 100
Subtract the new number by the original number
90 - 872 = -782
-782 ÷ 872 = -0.8967889908256881
-0.8967889908256881 x 100 = -89.68%