-15.28% is the change from 504 to 427
Calculation steps:
[( 427 - 504 ) ÷ 504] x 100 = -15.28%
Formula
Percentage change = [(427 - 504) / 504] x 100
Subtract the new number by the original number
427 - 504 = -77
-77 ÷ 504 = -0.1527777777777778
-0.1527777777777778 x 100 = -15.28%