Pronghorn Furniture Company started construction of a combination office and warehouse building for its own use at an estimated cost of $5, 021, 600 on January 1, 2017. Pronghorn expected to complete the building by December 31, 2017. Pronghorn has the following debt obligations outstanding during the construction period. Assume that Pronghorn completed the office and warehouse building on December 31, 2017, as planned at a total cost of $5, 229, 400, and the weighted-average amount of accumulated expenditures was $3, 780, 700. Compute the avoidable interest on this project. (Use interest rates rounded to 2 decimal places, e.g. 7.58% for computational purposes and round final answers to decimal places, e.g. 5, 275.) Compute the depreciation expense for the year ended December 31, 2018. Pronghorn elected to depreciate the building on a straight-line basis and determined that the asset has a useful life of 30 years and a salvage value of $297, 700. (Round answer to o decimal places, e.g. 5, 275.)