Acting as a Financial Analyst, conduct a ratio analysis to assess the profitability of a mid-sized retail business. Use key ratios such as gross profit margin, net profit margin, and return on assets (ROA). Provide recommendations on how to improve profitability by reducing operating costs and increasing revenue streams. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>