When purchasing paper and other training supplies, please use the invoice:
Borrow: inventory goods
Loan: cash (bank deposit)
Debit: main business cost
Loans: Goods in stock
Wages, some enterprises directly included in the cost, some enterprises included in the cost, can be:
Borrow: Payable salary loan: Cash loan: Main business cost (or related expenses).
Loan: Payable wages
Carry forward to the end of the month:
Debit: this year's profit loan: related expenses of main business cost.