Mich. Comp. Laws § 450.3161

Sec. 1161. An amendment to the articles of incorporation may be proposed by the board, by 10% or more of the members, or by some smaller percentage of members established in the articles or bylaws. If proposed by the number of members required for calling a special meeting pursuant to section 1141, a special meeting shall be called within a reasonable time. If proposed by less than the number of members required to call a special meeting, then the proposed amendment shall be considered at the next annual or special meeting.