4. A retail store had sales of $600,000 in July and $550,000 in August. The store has 10 full-time employees and each employee works 8 hours per day. In the month of July, the store also had 3 part-time employees and each part-time employee worked 5 hours per day. In the month of August, the store also had 2 part-time employees and each part-time employee worked 4 hours per day. Assume that there are 22 work days in each month. a. Find the labor productivity (expressed in sales dollars earned per labor-hour) for the month of July. b. Find the labor productivity (expressed in sales dollars earned per labor-hour) for the month of August. C. Find the percentage change in labor productivity from July to August. 5. Select a company (NOT DISCUSSED IN THE POWERPOINT) that competes using the low-cost strategy and discuss how it implements this strategy. Cite your sources, if used.