48.97% is the change from 339 to 505
Calculation steps:
[( 505 - 339 ) ÷ 339] x 100 = 48.97%
Formula
Percentage change = [(505 - 339) / 339] x 100
Subtract the new number by the original number
505 - 339 = 166
166 ÷ 339 = 0.4896755162241888
0.4896755162241888 x 100 = 48.97%