54.76% is the change from 336 to 520
Calculation steps:
[( 520 - 336 ) ÷ 336] x 100 = 54.76%
Formula
Percentage change = [(520 - 336) / 336] x 100
Subtract the new number by the original number
520 - 336 = 184
184 ÷ 336 = 0.5476190476190477
0.5476190476190477 x 100 = 54.76%