Quyết định cách ghi chép các khoản chi tiêu, thu nhập và ngân quỹ gia đình. Định dạng các cột trong bảng tính. Phân loại các khoản chi tiêu.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
You can use a simple pen and paper but it is much easier to use a spreadsheet program or a simple accounting program if you have access to one.  You can find sample budget worksheets from Kiplinger here. Calculations in a simple accounting program, such as Quicken, are virtually automated, as they are made for this type of project. This type of program also has additional features that may come in handy for formulating budget, such as savings tools. However, they are not free, so you will need t