-98.02% is the change from 504 to 10
Calculation steps:
[( 10 - 504 ) ÷ 504] x 100 = -98.02%
Formula
Percentage change = [(10 - 504) / 504] x 100
Subtract the new number by the original number
10 - 504 = -494
-494 ÷ 504 = -0.9801587301587301
-0.9801587301587301 x 100 = -98.02%