Adjustment for Accrued Salaries - Laguna Realty Co. pays weekly salaries of $8,000 on Friday for a five-day week ending on that day. What is the adjustment at the end of the accounting period, assuming that the period ends (a) on Monday or (b) on Wednesday? Indicate whether each account is increased or decreased, and the amount of the increase or decrease. a. Salary expense increase 1,600 Salary payable increase 1,600 b. Salary expense increase 4,800 Salary payable increase 4,800