If the board of finance finds that the proposed budget for a county will not maintain the proposed educational program as well as other financial obligations of their county board of education, it may require that the budget be revised, but in no case shall permit the reduction of the instructional term pursuant to the provisions contained in section fifteen, article five of this chapter nor the employment term below two hundred days. Any required revision in the budget for this purpose may be made in the following order:
(1) Postpone expenditures for permanent improvements and capital outlays except from the permanent improvement fund;
(2) Reduce the amount budgeted for maintenance exclusive of service personnel so as to guarantee the payment of salaries for the employment term; or
(3) Adjust amounts budgeted in any other way so as to assure the required employment term of two hundred days and the required instructional term of one hundred eighty days under the applicable provisions of law.