-28.74% is the change from 668 to 476
Calculation steps:
[( 476 - 668 ) ÷ 668] x 100 = -28.74%
Formula
Percentage change = [(476 - 668) / 668] x 100
Subtract the new number by the original number
476 - 668 = -192
-192 ÷ 668 = -0.2874251497005988
-0.2874251497005988 x 100 = -28.74%