-80.56% is the change from 504 to 98
Calculation steps:
[( 98 - 504 ) ÷ 504] x 100 = -80.56%
Formula
Percentage change = [(98 - 504) / 504] x 100
Subtract the new number by the original number
98 - 504 = -406
-406 ÷ 504 = -0.8055555555555556
-0.8055555555555556 x 100 = -80.56%