Funso (Chichewa): Ndi boma liti lomwe linalemba kusiyana kwakukulu kwa mitengo ya mbewu zonse?
Question (English): Which district recorded the widest range of prices across all commodities?
Table: commodity_prices (difficulty: medium)
SQL: SELECT district, (MAX(price) - MIN(price)) FROM commodity_prices GROUP BY district ORDER BY (MAX(price) - MIN(price)) DESC LIMIT 1;
Result: [('Kasungu', 19642.23)]