57.99% is the change from 319 to 504
Calculation steps:
[( 504 - 319 ) ÷ 319] x 100 = 57.99%
Formula
Percentage change = [(504 - 319) / 319] x 100
Subtract the new number by the original number
504 - 319 = 185
185 ÷ 319 = 0.5799373040752351
0.5799373040752351 x 100 = 57.99%