-29.28% is the change from 666 to 471
Calculation steps:
[( 471 - 666 ) ÷ 666] x 100 = -29.28%
Formula
Percentage change = [(471 - 666) / 666] x 100
Subtract the new number by the original number
471 - 666 = -195
-195 ÷ 666 = -0.2927927927927928
-0.2927927927927928 x 100 = -29.28%