-65.12% is the change from 668 to 233
Calculation steps:
[( 233 - 668 ) ÷ 668] x 100 = -65.12%
Formula
Percentage change = [(233 - 668) / 668] x 100
Subtract the new number by the original number
233 - 668 = -435
-435 ÷ 668 = -0.6511976047904192
-0.6511976047904192 x 100 = -65.12%