Product Sales Analysis V

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Example Testcases:

{"headers": {"Sales": ["sale_id", "product_id", "user_id", "quantity"], "Product": ["product_id", "price"]}, "rows": {"Sales": [[1, 1, 101, 10], [2, 2, 101, 1], [3, 3, 102, 3], [4, 3, 102, 2], [5, 2, 103, 3]], "Product": [[1, 10], [2, 25], [3, 15]]}}