904.55% is the change from 66 to 663
Calculation steps:
[( 663 - 66 ) ÷ 66] x 100 = 904.55%
Formula
Percentage change = [(663 - 66) / 66] x 100
Subtract the new number by the original number
663 - 66 = 597
597 ÷ 66 = 9.045454545454545
9.045454545454545 x 100 = 904.55%