At the selling price of US$97.00 per unit, what is gross profit for July if the packaging department adds US$0.04 to each unit and 1f units sold are 30,000 in June and 35,000 in July? Explain. How successful was William in reducing unit costs after the first month? How does knowing the cost of the units produced over three months help managerial decision-making? Was this spreadsheet effective in addressing Mike's concerns that William would be able to determine the cost for each unit in each of three months, explain how one period's production data feeds into the next in a continuous flow, and analyze the progress of the business over time? Why or why not