775.76% is the change from 66 to 578
Calculation steps:
[( 578 - 66 ) ÷ 66] x 100 = 775.76%
Formula
Percentage change = [(578 - 66) / 66] x 100
Subtract the new number by the original number
578 - 66 = 512
512 ÷ 66 = 7.757575757575758
7.757575757575758 x 100 = 775.76%