FastNet Systems is a​ start-up company that makes connectors for​ high-speed Internet connections. The company has budgeted variable costs of $ 110 for each connector and fixed costs of $ 4 comma 500 per month. FastNet​'s static budget predicted production and sales of 100 connectors in​ August, but the company actually produced and sold only 74 connectors at a total cost of $ 25 comma 000. FastNet​'s flexible budget variance for total costs is