Michigan Compiled Laws, Chapter 600. Revised Judicature Act of 1961 § 600.225a

Sec. 225a. Municipal judges transferred from one court to another as provided in section 225  1 shall receive the same salary as the judge to whose court he is assigned, in addition to travel and living expenses and an additional sum of not to exceed $20.00 per day, if approved by the governing body of the political unit where the court is located and to which he is assigned, payable at the same time and from the same source as provided for the judicial office to which the judge is transferred. The salary for each day in which the judge serves as authorized shall be 1/250 of the annual salary for the vacant judicial office. In all cases where the transferred judge is receiving a salary from the municipality where he is appointed or elected, he shall be paid only the difference, if any, between his home salary and the salary of the judgeship to which he has been transferred, and the amount of his home salary shall be returned by the governmental unit to which he is transferred to the governmental unit from which he is appointed or elected.