Michigan Compiled Laws, Chapter 445. Trade and Commerce § 445.1083

(a) If the wheelchair was purchased, at the direction of a consumer do 1 of the following:

(b) If the wheelchair is leased, accept return of the wheelchair, refund to the wheelchair lessor and to any holder of a perfected security interest in the wheelchair the current value of the written lease and refund to the consumer or third party the amount that the consumer or third party paid under the written lease plus any collateral costs, less a reasonable allowance for use. The current value of the written lease equals the total amount for which that lease obligates the consumer during the period of the lease remaining after its early termination, plus the wheelchair dealer's early termination costs and the value of the wheelchair at the lease expiration date if the lease sets forth that value, less the wheelchair lessor's early termination savings. A reasonable allowance for use shall not exceed the amount obtained by multiplying the total amount for which the written lease obligates the consumer by a fraction, the denominator of which is 1,825 and the numerator of which is the number of days that the wheelchair was used before the consumer first reported the nonconformity to the manufacturer, wheelchair lessor, or wheelchair dealer.