Thomas Cook Travels organizes several award winning tours to Switzerland and other parts of Europe. Thomas Cook applies overhead based on direct labor hours. The variable overhead standard is 6.0 hours at $15.0 per hour. During July, Thomas Cook spent $311,700 for variable overhead. 19,890 labor hours were used to produce 3,600 units. What is Thomas Cook's variable overhead efficiency variance? Multiple Choice $25,650 favorable o $244,350 favorable o $13,350 favorable o o $13,350 unfavorable