please solve by wirting out not excel

Suppose that Linksys is considering the development of a wireless home networking appliance, called HomeNet, that will provide both the hardware and the software necessary to run an entire home from any Internet connection. Linksys's receivables are 14.9% of sales and its payables are 15.6% of COGS. Forecast the required investment in net working capital for HomeNet assuming that sales and cost of goods sold (COGS) will be as follows: Year 1 3 Sales $23,425 $26,582 $23,841 $8,417 COGS $9.470 $10,746 $9,638 $3,403 4 0 2 The required investment in net working capital for year is $. (Round to the nearest dollar)