If the data from an intermediate district or district upon which a statement of the amount to be disbursed or paid are determined to be defective or incomplete, making it impracticable to ascertain the apportionment to be disbursed or paid, the department shall withhold the amount of the apportionment that cannot be ascertained until the department is able to ascertain by the best evidence available the facts upon which the ratio and amount of the apportionment depend, and then shall make the apportionment accordingly.
MCL 388.1614