550.41% is the change from 123 to 800
Calculation steps:
[( 800 - 123 ) ÷ 123] x 100 = 550.41%
Formula
Percentage change = [(800 - 123) / 123] x 100
Subtract the new number by the original number
800 - 123 = 677
677 ÷ 123 = 5.504065040650406
5.504065040650406 x 100 = 550.41%