-39.09% is the change from 504 to 307
Calculation steps:
[( 307 - 504 ) ÷ 504] x 100 = -39.09%
Formula
Percentage change = [(307 - 504) / 504] x 100
Subtract the new number by the original number
307 - 504 = -197
-197 ÷ 504 = -0.39087301587301587
-0.39087301587301587 x 100 = -39.09%