578.79% is the change from 66 to 448
Calculation steps:
[( 448 - 66 ) ÷ 66] x 100 = 578.79%
Formula
Percentage change = [(448 - 66) / 66] x 100
Subtract the new number by the original number
448 - 66 = 382
382 ÷ 66 = 5.787878787878788
5.787878787878788 x 100 = 578.79%