Advantages and disadvantages of trading profit and loss account?

Advantages and disadvantages of trading profit and loss account?
: Profit and loss account gives the actual information about net profit or net loss of the business for an accounting period, Profit and loss account gives the actual information about indirect expenses, Profit and loss account serves to show the ratio between net profit to sales, Profit and loss account helps in showing the ratio between net profit to operating expenses, Profit and loss account helps in controlling indirect expenses