-19.44% is the change from 504 to 406
Calculation steps:
[( 406 - 504 ) ÷ 504] x 100 = -19.44%
Formula
Percentage change = [(406 - 504) / 504] x 100
Subtract the new number by the original number
406 - 504 = -98
-98 ÷ 504 = -0.19444444444444445
-0.19444444444444445 x 100 = -19.44%