Funso (Chichewa): Ndi msika uti womwe unasonyeza kusiyana kwakukulu kwa mtengo wa Chimanga kumisika yonse?
Question (English): Which market recorded the largest price difference for maize?
Table: commodity_prices (difficulty: medium)
SQL: SELECT market, (MAX(price) - MIN(price)) FROM commodity_prices WHERE commodity = 'Maize' GROUP BY market ORDER BY (MAX(price) - MIN(price)) DESC LIMIT 1;
Result: [('Bvumbwe', 1299.9)]