Neel Ltd. had annual sales of 75,000 units, working for 50 weeks in the year. Cost details for the Company are as given below:

Particulars Rs.

Raw material Per Unit 50

Labour Per Unit 30

Overheads per Unit 20

Total cost Per Unit 100

Profit per Unit 40

Selling price Per Unit 140

Additional Information:

(i)The Company has the practice of storing raw materials for 2 weeks requirements.

(ii) The wages and other expenses are paid after a lag of 2 weeks.

(iii) Further the debtors enjoy a credit of 8 weeks and Company gets a credit of 4 weeks from suppliers.

(iv) The processing time is 2 weeks and finished goods inventory is maintained for 4 weeks.

From the above information prepare a working capital estimate, allowing for a 10% Contingency.