29.56% is the change from 389 to 504
Calculation steps:
[( 504 - 389 ) ÷ 389] x 100 = 29.56%
Formula
Percentage change = [(504 - 389) / 389] x 100
Subtract the new number by the original number
504 - 389 = 115
115 ÷ 389 = 0.29562982005141386
0.29562982005141386 x 100 = 29.56%