271.54% is the change from 123 to 457
Calculation steps:
[( 457 - 123 ) ÷ 123] x 100 = 271.54%
Formula
Percentage change = [(457 - 123) / 123] x 100
Subtract the new number by the original number
457 - 123 = 334
334 ÷ 123 = 2.7154471544715446
2.7154471544715446 x 100 = 271.54%