Assume you are a financial consultant advising a manufacturing company considering the introduction of a new product line. The company's fixed costs amount to $300,000, and variable costs per unit are $20. The selling price per unit is $50. Conduct a comprehensive CVP analysis to determine the breakeven point in units and sales revenue. Discuss the implications of various scenarios, such as changes in fixed costs or selling price, on the company's profitability. Present your analysis using a structured paragraph format, supplemented with tables and bullet points where necessary.