334.15% is the change from 123 to 534
Calculation steps:
[( 534 - 123 ) ÷ 123] x 100 = 334.15%
Formula
Percentage change = [(534 - 123) / 123] x 100
Subtract the new number by the original number
534 - 123 = 411
411 ÷ 123 = 3.341463414634146
3.341463414634146 x 100 = 334.15%