434.15% is the change from 123 to 657
Calculation steps:
[( 657 - 123 ) ÷ 123] x 100 = 434.15%
Formula
Percentage change = [(657 - 123) / 123] x 100
Subtract the new number by the original number
657 - 123 = 534
534 ÷ 123 = 4.341463414634147
4.341463414634147 x 100 = 434.15%