-38.32% is the change from 668 to 412
Calculation steps:
[( 412 - 668 ) ÷ 668] x 100 = -38.32%
Formula
Percentage change = [(412 - 668) / 668] x 100
Subtract the new number by the original number
412 - 668 = -256
-256 ÷ 668 = -0.38323353293413176
-0.38323353293413176 x 100 = -38.32%