(a) Applicable rules if amount of deficiency or surplus in issue. In an action arising from a transaction in which the amount of a deficiency or surplus is in issue, the following rules apply:

(1) A secured party need not prove compliance with the provisions of this part relating to collection, enforcement, disposition, or acceptance unless the debtor or a secondary obligor places the secured party's compliance in issue.

(2) If the secured party's compliance is placed in issue, the secured party has the burden of establishing that the collection, enforcement, disposition, or acceptance was conducted in accordance with this part.

(3) Except as otherwise provided in RCW 62A.9A-628, if a secured party fails to prove that the collection, enforcement, disposition, or acceptance was conducted in accordance with the provisions of this part relating to collection, enforcement, disposition, or acceptance, the liability of a debtor or a secondary obligor for a deficiency is limited to an amount by which the sum of the secured obligation, expenses, and attorneys' fees exceeds the greater of:

(A) The proceeds of the collection, enforcement, disposition, or acceptance; or

(B) The amount of proceeds that would have been realized had the noncomplying secured party proceeded in accordance with the provisions of this part relating to collection, enforcement, disposition, or acceptance.

(4) For purposes of (3)(B) of this subsection, the amount of proceeds that would have been realized is equal to the sum of the secured obligation, expenses, and attorneys' fees unless the secured party proves that the amount is less than that sum.

(b) [Reserved]