33.92% is the change from 339 to 454
Calculation steps:
[( 454 - 339 ) ÷ 339] x 100 = 33.92%
Formula
Percentage change = [(454 - 339) / 339] x 100
Subtract the new number by the original number
454 - 339 = 115
115 ÷ 339 = 0.3392330383480826
0.3392330383480826 x 100 = 33.92%