At Electrix, the standard price for the M640 electrical relay, a component used in the production of a commercial refrigeration unit, is $67. Standards call for two relays per refrigeration unit. In July, the company purchased 120 relays for $7,560. The company used 104 relays in the production of 50 commercial refrigeration units, with four relays damaged in the installation process. The standard quantity of labor is 20 hours per refrigeration unit. The standard wage rate is $23. In July, the company incurred 1,020 labor hours at a cost of $22,950. How much is the material price variance?