There are two methods for Accounting by product.are as follows
01.Production method
02.Sales methods
Under production method:-
Assign an estimated cost to by products equal to there net market value or net realized value
02.under sales method:-
By products recognized as a sale at the time of sale. sale by product under sale method may be grouped either.
01.others sales
02.others income or
03.Deducted from cost of goods sold.