53.27% is the change from 336 to 515
Calculation steps:
[( 515 - 336 ) ÷ 336] x 100 = 53.27%
Formula
Percentage change = [(515 - 336) / 336] x 100
Subtract the new number by the original number
515 - 336 = 179
179 ÷ 336 = 0.5327380952380952
0.5327380952380952 x 100 = 53.27%