We set up the model of GM(1,1) to predict the sales volume by applying the grey system theory(GST). Applying the model and the recent data,we can predict the sales volume in the future,and the outcome is coincident with the fact.Meanwhile,we have also researched the choice of the model parameters.Applying the predicting model of GST,we can reduce the blindness in making the producing plan and avoid the overstock of the appurtenances and products.Of course,it is also favorable to improve the fund velocity.
