The target's income statement provides a comprehensive overview of its revenue, cost, and profit, which reflects its business strategy, operations, and risks. When conducting P&L variance analysis in M&A due diligence, you should analyze the target's revenue by product, segment, region, or customer to identify the drivers and trends of its sales growth or decline. Additionally, you should check the quality and reliability of the target's revenue recognition and inventory valuation. Furthermore, you should calculate the target's gross margin as the difference between revenue and COGS, divided by revenue. You should also analyze the target's operating expenses by function to identify the drivers and trends of its operating efficiency or inefficiency. Moreover, you should calculate the target's operating income as the difference between gross margin and operating expenses. Finally, you should analyze the target's other income and expenses to identify their drivers and trends. Comparing the target's net income with its budget, forecast, or prior period, as well as with its peers or industry averages can help you identify the factors that affect its net income.