-78.37% is the change from 504 to 109
Calculation steps:
[( 109 - 504 ) ÷ 504] x 100 = -78.37%
Formula
Percentage change = [(109 - 504) / 504] x 100
Subtract the new number by the original number
109 - 504 = -395
-395 ÷ 504 = -0.7837301587301587
-0.7837301587301587 x 100 = -78.37%