What is the direct material cosr variance for 2020

QUESTION 9 Bob's Shakes budgets material costs of $1.50 and direct labor costs of $0.75 per shake. In 2020 Bob's Shakes prepared 12,800 shakes and recorded $19,439 in direct material costs and $9,500 in direct labor costs. What is the direct materials cost variance for 2020? Note that a favorable variance will be reported as a negative number and an unfavorable variance as a positive number