612.12% is the change from 66 to 470
Calculation steps:
[( 470 - 66 ) ÷ 66] x 100 = 612.12%
Formula
Percentage change = [(470 - 66) / 66] x 100
Subtract the new number by the original number
470 - 66 = 404
404 ÷ 66 = 6.121212121212121
6.121212121212121 x 100 = 612.12%