Alyeski tours operates day tours of coastal glaciers in alaska on its tour boat the blue glacier. management has identified two cost drivers—the number of cruises and the number of passengers—that it uses in its budgeting and performance reports. the company publishes a schedule of day cruises that it may supplement with special sailings if there is sufficient demand. up to 88 passengers can be accommodated on the tour boat. data concerning the company’s cost formulas appear below: fixed cost per month cost per cruise cost per passenger vessel operating costs $ 6,600 $ 479.00 $ 3.20 advertising $ 3,000 administrative costs $ 6,000 $ 40.00 $ 1.50 insurance $ 3,700 for example, vessel operating costs should be $6,600 per month plus $479.00 per cruise plus $3.20 per passenger. the company’s sales should average $28.00 per passenger. the company’s planning budget for july is based on 57 cruises and 3,050 passengers.

Ticker services began operations in 2015 and maintains long-term investments in available-for-sale securities. the year-end cost and fair values for its portfolio of these investments follow.portfolio of available-for-sale securities cost fair valuedecember 31, 2015 $ 369,060 $ 357,988 december 31, 2016 420,728 445,972 december 31, 2017 572,190 676,901 december 31, 2018 864,007 768,966 prepare journal entries to record each year-end fair value adjustment for these securities.calculation adjustment required to fair value adjustment.12/31/15 existing balance in fair value adjustment-afs (lt) required balance in fair value adjustment-afs (lt) adjustment required to fair value adjustment-afs (lt) 12/31/16 existing balance in fair value adjustment-afs (lt) required balance in fair value adjustment-afs (lt) adjustment required to fair value adjustment-afs (lt) 12/31/17 existing balance in fair value adjustment-afs (lt) required balance in fair value adjustment-afs (lt) adjustment required to fair value adjustment-afs (lt) 12/31/18 existing balance in fair value adjustment-afs (lt) required balance in fair value adjustment-afs (lt) adjustment required to fair value adjustment-afs (lt) record the year-end adjusting entry for the securities portfolio as of december 31, 2015.date general journal debit creditdec 31, 2015 record the year-end adjusting entry for the securities portfolio as of december 31, 2016.date general journal debit creditdec 31, 2016 record the year-end adjusting entry for the securities portfolio as of december 31, 2017.date general journal debit creditdec 31, 2017 record the year-end adjusting entry for the securities portfolio as of december 31, 2018.date general journal debit creditdec 31, 2018