As part of a major renovation at the beginning of the year, Hunter Pharmaceuticals, Inc. sold shelving units (store fixtures) that were ten years old for $1,000 cash. The shelves originally cost $6,400 and had been depreciated on a straight-line basis over an estimated useful life of ten years with an estimated residual value of $400. Assuming that depreciation has been recorded to the date of sale, show the effect of the disposal on the accounting equation. Prepare the journal entry to record the sale of the shelving units.