777.27% is the change from 66 to 579
Calculation steps:
[( 579 - 66 ) ÷ 66] x 100 = 777.27%
Formula
Percentage change = [(579 - 66) / 66] x 100
Subtract the new number by the original number
579 - 66 = 513
513 ÷ 66 = 7.7727272727272725
7.7727272727272725 x 100 = 777.27%