The money is spent not at the time of the transaction, but in the period when we enjoy the result of the bargain.
For example, it follows out of an account statement that the funds for a hotel reservation were spent instantly, but in fact, we could use the room for a week. Obviously, money “worked” all this week, and not at the moment they were debited.
Therefore, let us leave accounting of the time of a transaction for monitoring account balances, and to monitor expenditures, record the term of relevance of a transaction, calling it the active period.
Thus, barely begun, we have turned an instant loss in a week of acquisitions.