Studying for my Managerial Accounting Final: I need help with this question.

Moms Way Fun Pottery just contracted to make large planters for a county landscaping project. The standard quantity of clay used for each planter is 33 pounds. The standard cost is $2.40 per pound of clay. Moms Way Fun Pottery produced 2000 planters in May. In that month, 68,000 pounds of clay was purchased and used at a total cost of $153,000. Calculate the direct material price variance.