Your last 7 days cumulative PnL reflects your overall performance, capturing the gains or losses from your trades within that week. It shows how well your strategies have worked, whether you've been profitable or facing challenges in the market. This metric helps in assessing your trading consistency and making adjustments to your approach for better results moving forward. By analyzing your PnL, you can spot trends, evaluate risk management, and identify areas for improvement to boost your performance in the coming days.