I HAVE THE ANSWER I JUST NEED HELP WITH EXPLANATION

The Ford Company developed the following standards for the manufacture of its product: - Each unit should have 4 pounds of direct materials purchased at $12 per pound. - Each unit should be produced in 3 hours at a direct labor cost of $18 per hour. Actual production was 40,000 units using 162,800 pounds of direct materials at a total cost of $1,960,300 and required 109,400 direct labor hours at a total cost of $1,820,600. What was the direct labor price variance? Use a positive number to indicate a favorable variance or a negative number to indicate an unfavorable variance. 148,600 (with margin: 0 )