The chart is not nearly as important as the ability to really sit down and list out the necessary expenses in a thoughtful way.
You will need to consider 12 months of costs if you are doing a business plan. Rent, equipment, salaries, cost of goods sold, utilities, loan payments, and general operating costs should be laid out in a spreadsheet to show the progression for 12 months.
If you are doing a business plan I would suggest also to look at revenues and do a mock profit and loss. If you need help with putting this together you should contact the closest SBA office and find out when they have classes or if they have a counselor.