Mich. Comp. Laws § 390.903

Sec. 3. The money herein appropriated shall be distributed by the superintendent of public instruction to public school districts maintaining an approved college or a university upon the basis of their enrollments in junior or community college credit courses. The enrollment unit shall be a full time program for an academic year. Part time and shorter periods of enrollments shall be equated to this unit. No distribution under the terms of this act, when added to any other funds received by the public school district from the state for maintaining such college credit courses shall be made in excess of $190.00 per full and equated enrollment nor 1/2 of the total operational costs excluding capital outlay and debt service.