-95.83% is the change from 504 to 21
Calculation steps:
[( 21 - 504 ) ÷ 504] x 100 = -95.83%
Formula
Percentage change = [(21 - 504) / 504] x 100
Subtract the new number by the original number
21 - 504 = -483
-483 ÷ 504 = -0.9583333333333334
-0.9583333333333334 x 100 = -95.83%