-98.28% is the change from 524 to 9
Calculation steps:
[( 9 - 524 ) ÷ 524] x 100 = -98.28%
Formula
Percentage change = [(9 - 524) / 524] x 100
Subtract the new number by the original number
9 - 524 = -515
-515 ÷ 524 = -0.982824427480916
-0.982824427480916 x 100 = -98.28%