The DeSharon Company produces a product that requires 4 kilograms of raw materials at a cost of $10 per kilogram (at standard). Data for the previous month are as follows: Units Produced 3,850 Kilograms of raw materials purchased 20,700 Kilograms of raw materials used 16,950 Actual cost per kilogram $7.25 What is the direct materials quantity variance? (Use a negative number to indicate an unfavourable variance and use a positive number to indicate a favourable variance.)