992.42% is the change from 66 to 721
Calculation steps:
[( 721 - 66 ) ÷ 66] x 100 = 992.42%
Formula
Percentage change = [(721 - 66) / 66] x 100
Subtract the new number by the original number
721 - 66 = 655
655 ÷ 66 = 9.924242424242424
9.924242424242424 x 100 = 992.42%