Concord Timber Company owns 9,000 acres of timberland purchased in 2014 at a cost of $1,470 per acre. At the time of purchase, the land without the timber was valued at $420 per acre. In 2015, Concord built fire lanes and roads, with a life of 30 years, at a cost of $88,200. Every year, Concord sprays to prevent disease at a cost of $3,150 per year and spends $7,350 to maintain the fire lanes and roads. During 2016, Concord selectively logged and sold 735,000 board feet of timber, of the estimated 3,675,000 board feet. In 2017 , Concord planted new seedlings to replace the trees cut at a cost of $105,000. (a) Determine the depreciation expense and the cost of timber sold related to depletion for 2016. Depreciation expense Cost of timber sold