Mich. Comp. Laws § 450.1301

Sec. 301. (1) A corporation may issue the number of shares authorized in its articles of incorporation. The shares may be all of 1 class or may be designated and issued in 1 or more classes. Each class shall consist of shares having the designations and relative voting, distribution, dividend, liquidation, and other rights, preferences, and limitations, consistent with this act, as stated in the articles of incorporation. The articles of incorporation may deny, limit, or otherwise prescribe the voting rights and may limit or otherwise prescribe the distribution, dividend, or liquidation rights of shares of any class. (2) If the shares are designated and issued in more than 1 class, the shares of each class shall be designated to distinguish them from the shares of any other classes. (3) Subject to the designations, relative rights, preferences, and limitations applicable to separate series within a class of shares under section 302, each share shall be equal to every other share of the same class. (4) Any of the voting, distribution, liquidation, or other rights, preferences, or limitations of a class or series may be made dependent upon facts or events ascertainable outside of the articles of incorporation or the resolution of the board adopted under section 302(3), if the manner in which the facts or events operate on the rights, preferences, or limitations is set forth in the articles of incorporation or board resolution.