842.42% is the change from 66 to 622
Calculation steps:
[( 622 - 66 ) ÷ 66] x 100 = 842.42%
Formula
Percentage change = [(622 - 66) / 66] x 100
Subtract the new number by the original number
622 - 66 = 556
556 ÷ 66 = 8.424242424242424
8.424242424242424 x 100 = 842.42%