341.46% is the change from 123 to 543
Calculation steps:
[( 543 - 123 ) ÷ 123] x 100 = 341.46%
Formula
Percentage change = [(543 - 123) / 123] x 100
Subtract the new number by the original number
543 - 123 = 420
420 ÷ 123 = 3.4146341463414633
3.4146341463414633 x 100 = 341.46%