Stock :
Stock includes goods unsold on a particular date. Stock may be opening and closing stock. The term opening stock means goods unsold in the beginning of the accounting period. Whereas the term closing stock includes goods unsold at the end of the accounting perid. For example, if 4,000 units purchased @ Rs. 20 per unit remain unsold, the closing stock is Rs.80,000. This will be opening stock of the subsequent year.