Answer:
Report a prior period adjustment decreasing retained earnings by $1,040,000
Step-by-step explanation:
Report a prior period adjustment decreasing retained earnings by $1,040,000
Dr Retained earnings $1,040,000
Dr Deferred tax liability $560,000
(35%×$1,600,000)
Cr Estimated warranty liability $1,600,000
Therefore As a result of this change, the firm would Report a prior period adjustment decreasing retained earnings by $1,040,000