22.42% is the change from 339 to 415
Calculation steps:
[( 415 - 339 ) ÷ 339] x 100 = 22.42%
Formula
Percentage change = [(415 - 339) / 339] x 100
Subtract the new number by the original number
415 - 339 = 76
76 ÷ 339 = 0.22418879056047197
0.22418879056047197 x 100 = 22.42%