Distributions of cash or other assets of a limited liability company must be allocated among the members who own financial interests and other owners of financial interests, and among classes or groups of members, in the manner provided in the certificate of formation or operating agreement. Distributions must be made on the basis of the agreed value, as stated in the limited liability company records required to be kept pursuant to Section 79-29-115, of the contributions made by each member who owns a financial interest to the extent they have been received by the limited liability company and have not been returned.