Sandbox

SELECT 
  cscart_ult_product_prices.product_id, 
  MIN(
    IF(
      cscart_ult_product_prices.percentage_discount = 0, 
      cscart_ult_product_prices.price, 
      cscart_ult_product_prices.price - (
        cscart_ult_product_prices.price * cscart_ult_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_ult_product_prices 
WHERE 
  cscart_ult_product_prices.product_id IN (
    6427, 6428, 6429, 6430, 2765, 2766, 2767, 
    2768, 6352, 6353, 6354, 6355, 6356, 
    2185, 2186, 2187, 2188, 5785, 5786, 
    5787, 5788, 5789, 6641, 6219, 5807, 
    3722, 5819, 1516, 6623, 1504, 1494, 
    6209, 1499, 1489, 1433, 6614, 2268, 
    2269, 2270, 2271, 2336, 2337, 2338, 
    2339, 2412, 2413, 2414, 2415
  ) 
  AND cscart_ult_product_prices.lower_limit = 1 
  AND cscart_ult_product_prices.company_id = 1 
  AND cscart_ult_product_prices.usergroup_id IN (0, 0, 1) 
GROUP BY 
  cscart_ult_product_prices.product_id

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}