Many business owners are unsure of their profitability at a company or job level. They “think” they are making money because they have a few dollars in their checking account. Having money in your checking account doesn’t mean you are profitable. It might simply mean you haven’t paid all the bills yet, so you have a little cash. Cash and profit are two different concepts. If you don’t know your exact income and expenses for each job and your overall business, then how can you know whether you are making a profit? And, if you aren’t profitable, your business won’t last long.