The following transactions occurred during 2020. Assume that depreciation of 10% per year is charged on all machinery and 5% per year on buildings, on a straight-line basis, with no estimated salvage value. Depreciation is charged for a full year on all fixed assets acquired during the year, and no depreciation is charged on fixed assets disposed of during the year. Jan.30 A building that cost $ 158,400in 2003 is torn down to make room for a new building. The wrecking contractor was paid $ 6,120and was permitted to keep all materials salvaged. Mar. 10 Machinery that was purchased in 2013 for $ 19,200is sold for $3,480cash, f.o.b. purchaser's plant. Freight of $ 360is paid on the sale of this machinery. Mar.20 A gear breaks on a machine that cost $ 10,800in 2012. The gear is replaced at a cost of $ 2,400. The replacement does not extend the useful life of the machine but does make the machine more efficient. May18 A special base installed for a machine in 2014 when the machine was purchased has to be replaced at a cost of $ 6,600because of defective workmanship on the original base. The cost of the machinery was $ 17,040in 2014. The cost of the base was $ 4,200, and this amount was charged to the Machinery account in 2014. June 23 One of the buildings is repainted at a cost of $ 8,280. It had not been painted since it was constructed in 2016. 1/30 3/10 5/18