Greenville Industries uses the accrual basis to account for all sales transactions. Sales for 2018 total $ 600 comma 000. Included in this amount is $ 15 comma 000 in receivables from sales on installment. Installment sales are considered revenue for book​ purposes, but not for tax purposes. Operating expenses total $ 150 comma 000 and are treated the same for book and tax purposes. What is​ Greenville's tax basis in the installment sale​ receivable?