919.7% is the change from 66 to 673
Calculation steps:
[( 673 - 66 ) ÷ 66] x 100 = 919.7%
Formula
Percentage change = [(673 - 66) / 66] x 100
Subtract the new number by the original number
673 - 66 = 607
607 ÷ 66 = 9.196969696969697
9.196969696969697 x 100 = 919.7%