Final answer:
To calculate the current multifactor productivity, divide the number of loaves produced per month by the total input, which includes labor cost and utility cost.
Step-by-step explanation:
The current multifactor productivity can be calculated by dividing the output by the total input. In this case, the output is the number of loaves produced per month, which is 1,800. The total input includes the labor cost and the utility cost. Assuming there are 640 work hours per month, the labor cost is 640 hours multiplied by $8.00 per hour. The utility cost remains constant at $800 per month. So the total input would be the sum of the labor cost and the utility cost. Finally, divide the output by the total input to calculate the current multifactor productivity.