974.24% is the change from 66 to 709
Calculation steps:
[( 709 - 66 ) ÷ 66] x 100 = 974.24%
Formula
Percentage change = [(709 - 66) / 66] x 100
Subtract the new number by the original number
709 - 66 = 643
643 ÷ 66 = 9.742424242424242
9.742424242424242 x 100 = 974.24%