-6.75% is the change from 504 to 470
Calculation steps:
[( 470 - 504 ) ÷ 504] x 100 = -6.75%
Formula
Percentage change = [(470 - 504) / 504] x 100
Subtract the new number by the original number
470 - 504 = -34
-34 ÷ 504 = -0.06746031746031746
-0.06746031746031746 x 100 = -6.75%