JavaPro Systems is a start$-$up company that makes connectors for high$-$speed Internet connections. The company has budgeted variable costs of $$120$ for each connector and fixed costs of $$6,500$ per month. JavaPro's static budget predicted production and sales of $100$ connectors in August, but the company actually produced and sold only $70$ connectors at a total cost of $$25,000.$

JavaPro's flexible budget variance for total costs is