Question 7 (12 points) Gandalf Corporation establishes standard rates to plan and control its production They have determined their standard variable overhead rate as $25 per direct labour hour and each unit requires 3.5 direct labour hours. In 2019. Gandalf actually incurred 3.750 hours and total variable overhead cost of $92,812.50 to produce 890 units. Required; Calculate spending efficiency, and total variances for Gandalfs variable overhead costs WRITE YOUR ANSWER ON A SHEET OF PAPER AND UPLOAD IT TO YOUR BRIGHTSPACE DROPBOX SHOW ALL WORRINGS L