Cunningham Inc. purchased equipment on January 1, 2014, for $315,000, estimating a 7-year useful life and no residual value. In 2014 and 2015, Cunningham depreciated the asset using the straight-line method. In 2016, Cunningham changed to sum-of-years'-digits depreciation for this equipment. What depreciation would Cunningham record for the year 2016 on this equipment? (Do not round your depreciation rate.)

$45,000.

$75,000.

$90,000.

$37,500.