824.24% is the change from 66 to 610
Calculation steps:
[( 610 - 66 ) ÷ 66] x 100 = 824.24%
Formula
Percentage change = [(610 - 66) / 66] x 100
Subtract the new number by the original number
610 - 66 = 544
544 ÷ 66 = 8.242424242424242
8.242424242424242 x 100 = 824.24%