(a) Except as provided by Subsection (b) , the redemption price of a withdrawn partner's partnership interest is the fair value of the interest on the date of withdrawal.
(b) The redemption price of the partnership interest of a partner who wrongfully withdraws before the expiration of the partnership's period of duration, the completion of a particular undertaking, or the occurrence of a specified event requiring a winding up of partnership business is the lesser of:
(1) the fair value of the withdrawn partner's partnership interest on the date of withdrawal; or
(2) the amount that the withdrawn partner would have received if an event requiring a winding up of partnership business had occurred at the time of the partner's withdrawal.
(c) Interest is payable on the amount owed under this section.