Acme Company is preparing its budget for the upcoming year. For the month of August, unit sales are budgeted at $17,600$ units and production is budgeted at $17,750$ units. Ending inventory is budgeted at $40\%$ of the next month's unit sales. What are the budgeted unit sales in September?

$17,900$ units

$17,975$ units

$18,100$ units

$19,060$ units

None of the above