33.23% is the change from 337 to 449
Calculation steps:
[( 449 - 337 ) ÷ 337] x 100 = 33.23%
Formula
Percentage change = [(449 - 337) / 337] x 100
Subtract the new number by the original number
449 - 337 = 112
112 ÷ 337 = 0.3323442136498516
0.3323442136498516 x 100 = 33.23%