4. [10 points] Hotdog Palace was facing labor shortage (and higher per-hour labor cost) in the last + month. Following table shows the production statistics. November December Orders fulfilled Labor cost Material cost Overhead costs 3537 $9800 $3500 $2000 2945 $9000 $3500 $2000 a. What is the multi-factor productivity in November? Show calculations to earn credit. b. What is the multi-factory productivity in December? Has the productivity increased or decreased? c. What is the percentage of productivity change? Show calculations to earn credit. Is it an increase or decrease? d. Hotdog Palace has decided not to change the price of the food. What can you predict about the profits of Hotdog Palace? Explain your reasoning.