-30.39% is the change from 668 to 465
Calculation steps:
[( 465 - 668 ) ÷ 668] x 100 = -30.39%
Formula
Percentage change = [(465 - 668) / 668] x 100
Subtract the new number by the original number
465 - 668 = -203
-203 ÷ 668 = -0.30389221556886226
-0.30389221556886226 x 100 = -30.39%