Production of a product utilizes materials D, E, and F. The following are their standards: Material D E F Standard Mix 6,000 units 4,000 units Standard Unit Price Standard Cost $1.00 per unit $6,000 2,000 units 2.00 per unit 1.50 per unit $8,000 $3,000 Yield 8,000 units During August, the following actual production information was provided: Material D E F Actual Mix 37,000 units 17,000 units 7,000 units Yield 50,000 units Calculate the materials mix variance