Every founder fixates on the multiple. Tim Hellebrand will tell you the (second) most important number on a letter of intent is the one almost nobody understands until it is too late: working capital. When Tim and his four brothers took their $105 million family appliance business to market, six letters of intent came back, and the spread between the lowest and the highest was 60 percent. Most of that gap had nothing to do with the multiple. Don's Appliances ran on a mountain of inventory, refrigerators and ranges and washers sitting across two distribution centers, and every buyer had a different view of how much of that had to stay locked in the company on closing day. Whatever stayed in was money the brothers did not get to take home. Tim assumed they would simply get their inventory money back. That is not how it works.