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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 (
    2416, 2417, 2418, 2419, 2420, 2514, 2515, 
    2516, 2517, 2518, 2604, 2605, 2606, 
    2607, 3840, 3841, 3842, 3843, 5867, 
    5868, 5869, 5870, 5871, 5935, 5936, 
    5937, 5938, 5939, 6012, 6013, 6014, 
    6015, 6016, 6017, 6018, 6019, 6020, 
    6196, 6197, 6198, 6199, 6200, 6732, 
    2836, 2837, 2838, 2839, 2840
  ) 
  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"
  }
}