The annual fixed costs of a product are known to be Rs.2$\times$105 and the annual net profit is Rs.4$\times$104; the average monthly sales being 820 units. A new design is contemplated involving an expenditure of preparations amounting to Rs.8$\times$104 to be returned in two years. It is expected that with new production methods the product to volume ratio may be increased by 5 percent. What would be the new annual sales figure for the new product so that
(i) Same net profit is realized
(ii) In addition to this profit a yield of 10 percent on the capital involved will be obtained.