284.55% is the change from 123 to 473
Calculation steps:
[( 473 - 123 ) ÷ 123] x 100 = 284.55%
Formula
Percentage change = [(473 - 123) / 123] x 100
Subtract the new number by the original number
473 - 123 = 350
350 ÷ 123 = 2.845528455284553
2.845528455284553 x 100 = 284.55%