A firm is projecting sales of $50,000$ units next year. Sale price will be Rs$.20$ per unit. Raw Material cost, Labour cost and Overhead cost are estimated to be $25\%,20\%$ and $30\%$ respectively. Raw materials remain in stock on an average for $2$ weeks, work$-$in$-$progress for $1$ week and finished goods for $3$ weeks. Debtors are allowed $1$ month credit while suppliers give $6$ weeks credit. $25\%$ of sales are on cash basis. $10\%$ margin is kept for contingencies. Prepare a statement showing funds to be arranged for working capital $(50$ weeks per year$).$