269.92% is the change from 123 to 455
Calculation steps:
[( 455 - 123 ) ÷ 123] x 100 = 269.92%
Formula
Percentage change = [(455 - 123) / 123] x 100
Subtract the new number by the original number
455 - 123 = 332
332 ÷ 123 = 2.6991869918699187
2.6991869918699187 x 100 = 269.92%