343.69% is the change from 103 to 457
Calculation steps:
[( 457 - 103 ) ÷ 103] x 100 = 343.69%
Formula
Percentage change = [(457 - 103) / 103] x 100
Subtract the new number by the original number
457 - 103 = 354
354 ÷ 103 = 3.436893203883495
3.436893203883495 x 100 = 343.69%