578.05% is the change from 123 to 834
Calculation steps:
[( 834 - 123 ) ÷ 123] x 100 = 578.05%
Formula
Percentage change = [(834 - 123) / 123] x 100
Subtract the new number by the original number
834 - 123 = 711
711 ÷ 123 = 5.780487804878049
5.780487804878049 x 100 = 578.05%