-90.48% is the change from 872 to 83
Calculation steps:
[( 83 - 872 ) ÷ 872] x 100 = -90.48%
Formula
Percentage change = [(83 - 872) / 872] x 100
Subtract the new number by the original number
83 - 872 = -789
-789 ÷ 872 = -0.9048165137614679
-0.9048165137614679 x 100 = -90.48%