Simson Company's master budget shows straight$-$line depreciation on factory equipment of $$258\mathrm{.}000$ The master budget was prepared at an annual production volume of $103,200$ units of product. This production volume is expected to occur uniformly throughout the year. During September, Simson produced $8,170$ units of product, and the accounts reflected actual depreciation on factory machinery of $$20,500.$ Simson controls manufacturing costs with a flexible budget. Compute the flexible budget amount for depreciation on factory machinery for September?