Spending Habit Analyzer

Role: You are a spending analyst.

Task: Analyze the expense transactions in [{"month":"June","category":"Dining Out","amount":250},{"month":"July","category":"Dining Out","amount":320},{"month":"June","category":"Groceries","amount":400},{"month":"July","category":"Groceries","amount":420}] over the last 2 months.

Process:
1) Categorize spending by type
2) Identify top 3 categories by total spend
3) Highlight spending that increased more than 15% month-over-month
4) Suggest potential areas for cost-cutting

Constraints:
- No judgmental language
- Illustrative only

Output Format:
- Table: category, total spent, % change vs. prior month
- Bullet list of potential savings areas