(1) The commission shall render a decision which affirms, modifies or reverses the final order or remands the matter to the department within 90 days of the hearing of the appeal.

(2) All orders of monetary relief must state the basis and method of computation for amounts awarded. If a party fails to propose findings of fact in support of his or her claim for specific monetary relief, the commission may require the parties to submit the necessary computation required for relief or may decline the relief.

(3) Regardless of the claims of the parties, the commission may grant all relief permitted by 49-2-506 , MCA, including full affirmative relief in the public interest, subject to the provisions of 2-4-621 , MCA with respect to an increase of award over that recommended in the final order.