Opening Stock: Raw Materials 5,000 Finished goods 4,000 Closing Stock: Raw materials 4,000 Finished goods 5,000 Raw materials purchased 50,000 Wages paid to laborers 20,000 Chargeable expenses 2,000 Rent, rates & taxes 5,000 Power 2,000 Factory heating and lighting 2,000 Factory insurance 1,000 Experimental expenses 500 Wastage of material 200 Office management salaries 4,000 Office printing and stationery 200 Salaries of sales men 2,000 Commission of travelling agents 1,000 Sales 1,00,000