On February 1, 2022, the balance of the retained earnings account of Blue Power Corporation was $504,000. Revenues for February totaled $98,400, of which $92,000 was collected in cash. Expenses for February totaled $170,300, of which $140,400 was paid in cash. Dividends declared and paid during February were $15,600. Required: Calculate the retained earnings balance at February 28, 2022. Note: Amounts to be deducted should be indicated with a minus sign