743.04% is the change from 79 to 666
Calculation steps:
[( 666 - 79 ) ÷ 79] x 100 = 743.04%
Formula
Percentage change = [(666 - 79) / 79] x 100
Subtract the new number by the original number
666 - 79 = 587
587 ÷ 79 = 7.430379746835443
7.430379746835443 x 100 = 743.04%