Refer to the information in Exercise.
In Exercise, The standard direct labor cost per reservation for Harry's Hotel is $2 (= $12 per labor hour ÷ 6 reservations per hour). Actual direct labor costs during the period totaled $45,240. Also during the period, 2,750 labor-hours were worked, and 15,000 reservations were made.

Required Write a memo to Harry recommending which variances he should investigate this period along with your reasons.