340.78% is the change from 103 to 454
Calculation steps:
[( 454 - 103 ) ÷ 103] x 100 = 340.78%
Formula
Percentage change = [(454 - 103) / 103] x 100
Subtract the new number by the original number
454 - 103 = 351
351 ÷ 103 = 3.407766990291262
3.407766990291262 x 100 = 340.78%