id, trade_order_id, goods_id, product_name, product_spec, unit_price, amount SELECT product_name, product_spec, MAX(unit_price) AS maxPrice, MIN(unit_price) AS minPrice, SUM(amount) as amount, ROUND(SUM(unit_price * amount) / SUM(amount), 2) AS avgPrice, ROUND(SUM(unit_price * amount) / 10000, 2) AS salePrice, ROUND(100 * SUM(unit_price * amount) / total_sales, 2) AS percent FROM kwo_trade_order_archive CROSS JOIN (SELECT SUM(unit_price * amount) AS total_sales FROM kwo_trade_order_archive) AS t GROUP BY product_name, product_spec ORDER BY amount DESC;