54.87% is the change from 339 to 525
Calculation steps:
[( 525 - 339 ) ÷ 339] x 100 = 54.87%
Formula
Percentage change = [(525 - 339) / 339] x 100
Subtract the new number by the original number
525 - 339 = 186
186 ÷ 339 = 0.5486725663716814
0.5486725663716814 x 100 = 54.87%