-33.03% is the change from 666 to 446
Calculation steps:
[( 446 - 666 ) ÷ 666] x 100 = -33.03%
Formula
Percentage change = [(446 - 666) / 666] x 100
Subtract the new number by the original number
446 - 666 = -220
-220 ÷ 666 = -0.3303303303303303
-0.3303303303303303 x 100 = -33.03%