There is a tendency for business owners that operate from home to keep track of only rudimentary accounting details, such as sales, costs, and profits. One reason is home business owners don't intend on growing beyond their physical means, so don't believe documenting certain figures or trends to be necessary. Or, they may find the whole process just too daunting. Neither of those concerns dispel the need to know exactly how business is doing, as hard data can help keep you in business. Bond portfolio statistics, for example, are extremely extensive and provide the critical purpose of helping people make informed decisions. Why wouldn't you want the same for your business?
The fact of the matter is that conjuring detailed financial figures for your home business is not difficult. Every business has fiscal dates for when periods begin and end. Choose a date and use it as your time reference for your data and charts.
As a home business owner you can use your income as a prominent indicator and starting figure, since that is essentially the business revenue. Tracking this figure will provide a history of where the business has been economically and where it seems to be going. It is also the business oracle for those inevitable fluctuations of your business. But it will allow you to see where things went bad or when things took off and the reasoning behind it all, be it the economy or some operational change.
From your revenue you branch out to more figures that may be even more telling like your profit/loss. Generate data on trends to note your busy months and consider what to do when things become slow. You may also want to see how your overhead costs affected your income. You may find it's time to change suppliers for cheaper prices or that you have room to lower retail prices to target your competition.