-15.55% is the change from 984 to 831
Calculation steps:
[( 831 - 984 ) ÷ 984] x 100 = -15.55%
Formula
Percentage change = [(831 - 984) / 984] x 100
Subtract the new number by the original number
831 - 984 = -153
-153 ÷ 984 = -0.15548780487804878
-0.15548780487804878 x 100 = -15.55%