-3.63% is the change from 523 to 504
Calculation steps:
[( 504 - 523 ) ÷ 523] x 100 = -3.63%
Formula
Percentage change = [(504 - 523) / 523] x 100
Subtract the new number by the original number
504 - 523 = -19
-19 ÷ 523 = -0.036328871892925434
-0.036328871892925434 x 100 = -3.63%