-85.52% is the change from 504 to 73
Calculation steps:
[( 73 - 504 ) ÷ 504] x 100 = -85.52%
Formula
Percentage change = [(73 - 504) / 504] x 100
Subtract the new number by the original number
73 - 504 = -431
-431 ÷ 504 = -0.8551587301587301
-0.8551587301587301 x 100 = -85.52%