Martin's Cove Marina has September 30 year end. On August 15, 2021, it purchased a new marine crane to assist it with autumn pull out of boats in the marina. The physical life of the crane is expected to be 15 years, but Martin plans to keep the crane for only 10 years as this represents the asset's useful life to the company and at which point they will trade it in for a newer model. The original cost of the crane is $50,000. The amount of depreciation that Martin should show in its financial statements for the year ended September 30, 2021 is