-98.97% is the change from 872 to 9
Calculation steps:
[( 9 - 872 ) ÷ 872] x 100 = -98.97%
Formula
Percentage change = [(9 - 872) / 872] x 100
Subtract the new number by the original number
9 - 872 = -863
-863 ÷ 872 = -0.9896788990825688
-0.9896788990825688 x 100 = -98.97%