Yukelson Company owns the building occupied by its administrative office. The office building was reflected in the accounts at the end of last year as follows: Cost when acquired $ 396,000
Accumulated depreciation (based on straight-line depreciation, an estimated life of 50 years, and a $36,000 residual value) 72,000
During January of this year, on the basis of a careful study, management decided that the total estimated useful life should be changed to 30 years (instead of 50) and the residual value reduced to $30,000 (from $36,000)). The depreciation method will not change.
Required:
1. Compute the annual depreciation expense prior to the change in estimates.
2. Compute the annual depreciation expense after the change in estimates.3. What will be the net effect of changing estimates on the balance sheet, net income, and cash flows for the year?

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