Glen Arbor Corporation sells DVD players. The corporation also offers its customers a 4-year service-type warranty contract. On 1/1/24, Glen Arbor sold 20,000 warranty contracts at $99 each and spent $180,000 servicing warranties during 2024 and $200,000 servicing warranties in 2025. Estimated warranty expense for the four-year period is $800,000. The Sales Warranty (Deferred Revenue) approach is applicable. Assume straight-line amortization. What is the Unearned Warranty Revenue balance at 12/31/25