-91.57% is the change from 984 to 83
Calculation steps:
[( 83 - 984 ) ÷ 984] x 100 = -91.57%
Formula
Percentage change = [(83 - 984) / 984] x 100
Subtract the new number by the original number
83 - 984 = -901
-901 ÷ 984 = -0.915650406504065
-0.915650406504065 x 100 = -91.57%