For July 2022, the requirements and details for the company's sole product are as follows:

Standards: Direct materials 4kg @ $7 per kg Direct labour 5 hours @ $60 per hour Variable manufacturing overheads $12 per labour hour Normal production 12 000 units per month

Actual information for May 2022: Direct materials used 43 000kg @ $7.50 per kg Direct labour 56 000 hours @ $58 per hour Variable manufacturing overheads $649 600 Production 11 000 units manufactured

Indicate the quantity of the material variance used and whether the labor efficiency variance is favorable or unfavorable.