What Ark demonstrated

Built an end-to-end profit-paradox analysis: framed hypotheses and KPI drivers, audited the data, wrote correct SQL for category and regional margin analysis, and used the results to isolate margin erosion from raw-material inflation, logistics inefficiency, and discounting. The work was packaged into an executive-ready dashboard, boardroom deck, stakeholder Q&A, and a concise final verdict with prioritized actions.

• Leakage-Free Analytical Framing
• Correct SQL Aggregation and Join Logic
• Root-Cause Prioritization
• Executive Business Communication