A company developed the following per-unit standards for its product 5 kilograms of direct materials at $3.00 per kilogram. Last month, 1,000 kilograms of direct materials were purchased for $3030. Also last month. 750 kilograms of direct materials were used to produce 143 units. What was the direct materials quantity variance for last month? $105 unfavourable \$105 favourable \$715 unfavourable $715 tavourable