-50.56% is the change from 983 to 486
Calculation steps:
[( 486 - 983 ) ÷ 983] x 100 = -50.56%
Formula
Percentage change = [(486 - 983) / 983] x 100
Subtract the new number by the original number
486 - 983 = -497
-497 ÷ 983 = -0.5055951169888098
-0.5055951169888098 x 100 = -50.56%