-3.37% is the change from 504 to 487
Calculation steps:
[( 487 - 504 ) ÷ 504] x 100 = -3.37%
Formula
Percentage change = [(487 - 504) / 504] x 100
Subtract the new number by the original number
487 - 504 = -17
-17 ÷ 504 = -0.03373015873015873
-0.03373015873015873 x 100 = -3.37%