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 (
    1911, 1912, 1913, 1914, 1915, 1916, 1917, 
    1918, 1919, 1920, 1921, 1922, 1923, 
    1924, 1925, 1926, 1927, 1928, 1929, 
    1930, 1931, 5560, 5561, 5562, 5563, 
    5564, 5565, 5566, 5567, 5568, 5569, 
    5570, 5571, 5572, 5573, 5574, 5575, 
    5576, 5577, 5578, 5579, 5580, 5581, 
    5582, 5583, 5584, 5585, 5586
  ) 
  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 0.00030

JSON explain

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