-98.68% is the change from 983 to 13
Calculation steps:
[( 13 - 983 ) ÷ 983] x 100 = -98.68%
Formula
Percentage change = [(13 - 983) / 983] x 100
Subtract the new number by the original number
13 - 983 = -970
-970 ÷ 983 = -0.9867751780264497
-0.9867751780264497 x 100 = -98.68%