3.92% is the change from 485 to 504
Calculation steps:
[( 504 - 485 ) ÷ 485] x 100 = 3.92%
Formula
Percentage change = [(504 - 485) / 485] x 100
Subtract the new number by the original number
504 - 485 = 19
19 ÷ 485 = 0.03917525773195876
0.03917525773195876 x 100 = 3.92%