-99.59% is the change from 983 to 4
Calculation steps:
[( 4 - 983 ) ÷ 983] x 100 = -99.59%
Formula
Percentage change = [(4 - 983) / 983] x 100
Subtract the new number by the original number
4 - 983 = -979
-979 ÷ 983 = -0.9959308240081384
-0.9959308240081384 x 100 = -99.59%