50.9% is the change from 334 to 504
Calculation steps:
[( 504 - 334 ) ÷ 334] x 100 = 50.9%
Formula
Percentage change = [(504 - 334) / 334] x 100
Subtract the new number by the original number
504 - 334 = 170
170 ÷ 334 = 0.5089820359281437
0.5089820359281437 x 100 = 50.9%