845.45% is the change from 66 to 624
Calculation steps:
[( 624 - 66 ) ÷ 66] x 100 = 845.45%
Formula
Percentage change = [(624 - 66) / 66] x 100
Subtract the new number by the original number
624 - 66 = 558
558 ÷ 66 = 8.454545454545455
8.454545454545455 x 100 = 845.45%