Grouper Corporation sells home entertainment systems. The corporation also offers to seil its customers a two year warranty contract as a separate service. During 2020, Grouper sold 21,000 warranty contracts at $96 each. The corporation spent $150,000 servicing warranties during 2020 , and it estimates that an additional $600,000 will be spent in the future to service the warranties. Grouper recognizes warranty revenue based on the proportion of costs incurred out of total estimated costs. Prepare Grouper's journal entry for the sale of warranty contracts. (Credit occount titles are automotically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the occount titles and enter ofor the amounts). eTextbook and Media Prepare Grouper's journal entry for the cost of servicing the warranties. (Credit occount titles are automoticolly indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the occount tities and enter 0 for the amounts) eTextbook and Media Prepare Grouper's journal entry for the recognition of warranty revenue under the revenue approach used for service-type warranties: (Credit account titles are automatically indented when the amount is entered. Do not indent manuolly. If no entry is required. select "No Entry" for the occount titles and enter O for the amounts)