31.25% is the change from 384 to 504
Calculation steps:
[( 504 - 384 ) ÷ 384] x 100 = 31.25%
Formula
Percentage change = [(504 - 384) / 384] x 100
Subtract the new number by the original number
504 - 384 = 120
120 ÷ 384 = 0.3125
0.3125 x 100 = 31.25%