Concord Company purchased machinery with a list price of $96700. They were given a 10% discount by the manufacturer. They paid $470 for shipping and sales tax of $4300. Concord estimates that the machinery will have a useful life of 10 years and a residual value of $30800. If Concord uses straight-line depreciation, annual depreciation will be O $9240. O $5623 O $6100. $6058