Preparation of a purchase budget requires all of the following information except - (3 Points) Estimated balance of inventory at the beginning of the budgeted period O Estimated selling expenses for the budgeted period O Estimated sales units for the budgeted period O Estimated balance of desired inventory at the end of the budgeted period A disadvantage of static budgets is that they - (3 Points) O show the expected results of a responsibility center for several levels of activity O are dependent on previous year's actual results O cannot be used by service companies O do not show possible changes in underlying activity levels