Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to manage cash flow for a business [title] Write down your business's balance at the beginning of each month. [step] Check your business's bank account to see how much cash you have on hand. You will need to do this for a few months before you have a good idea of what your cash flow is like.

Ending1: [substeps] If you're trying to calculate cash flow from previous months, you can use your bank statements to determine what cash was available in previous months. [title] Record all transactions that cause money to flow in and out. Ending2: Write your cash flow in four columns: current cash flow over the past year. Your current cash flow over the past five years. Ending3: Then, mark how much you actually use each month at a debit card or bank account. [substeps] Pay attention to dates and generally any cash flow limitations that affect how you spend money, such as any shipping charges or any chance you may have of buyer selling a product you have not yet purchased. Ending4: [substeps] Your balance should then be comparable to what you would if you were operating a larger business. This will give you a clear idea of what your operating expenses are.

Answer format: ending1/ending2/ending3/ending4