The Koski Company has established standards as follows direct material.........3pounds @ $4/pound=$12 per unit direct labor.............2hours @ $8/hour=$16 per unit Variable overhead.....2hours @ $5/hour=$10 per unit Actual production figures for the past year: units produced...........................500 direct material used.....................1,600 pounds direct material purchased (3,000).....$12,300 direct labor cost (950 hours)...........$7,5790 variable overhead cost incurred.......$4,655 1. The materials price variance is: 2. The materials quantity variance is: 3. The labor rate variance is: 4. The labor efficiency variance is: 5. The variable overhead rate variance is: 6. The variable overhead efficiency variance is