A budget consists of three essential components: sales and other revenues, total costs and expenses, and profits. The more accurate your sales and other revenue estimates are, the easier it will be to prepare for the following year's finances. If you are a new company, it is best to look at your industry's financial health and growth. The second part of a budget looks at the business's total costs and expenses, which includes identifying fixed, variable, and semi-variable expenses. The last part of the budget focuses on profits. You can use two formulas to determine if you made a profit: sales = total cost + profit or sales - total cost = profit.