Show each customer region with the average sale amount (quantity × price) for that region.

Reference Tables

Sales (sales)

id quantity price sale_date customer_region product_id
1 2 1299.99 Jan. 15, 2024 North America 1
2 1 129.99 Jan. 16, 2024 Europe 2
3 3 89.99 Jan. 17, 2024 Asia 3
4 5 19.99 Jan. 18, 2024 North America 4
5 4 39.99 Jan. 19, 2024 Europe 5
6 2 49.99 Jan. 20, 2024 Asia 6
7 1 29.99 Jan. 21, 2024 North America 7
8 1 899.99 Jan. 22, 2024 Europe 8
9 6 79.99 Jan. 23, 2024 Asia 9
10 1 159.99 Jan. 24, 2024 North America 10

Products (products)

id product_name category supplier_name cost_price stock_quantity supplier_country
1 Laptop Pro Electronics TechSupply Co 999.99 50 China
2 Running Shoes Sports SportGear Ltd 79.99 100 Vietnam
3 Coffee Maker Home HomeAppliances Inc 59.99 75 Germany
4 Novel Book Books BookWorld Publishers 12.99 200 USA
5 Wireless Mouse Electronics TechSupply Co 24.99 150 China
6 Yoga Mat Sports FitnessGear Pro 29.99 80 India
7 Cookbook Books BookWorld Publishers 19.99 120 USA
8 Smartphone Electronics MobileTech Inc 699.99 30 South Korea
9 Desk Lamp Home HomeAppliances Inc 49.99 60 Germany
10 Tennis Racket Sports SportGear Ltd 99.99 40 Vietnam

Your Solution

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Tip: Use the reference tables above to understand the data structure.