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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 (
    3698, 3699, 3700, 3701, 3702, 3703, 3704, 
    3705, 3706, 3707, 6723, 6717, 6720, 
    3151, 3864, 3145, 6721, 3863, 3148, 
    6718, 6722, 3144, 3147, 3096, 339, 3104, 
    3107, 6682, 6678, 104, 105, 106, 107, 
    108, 109, 110, 4013, 4014, 4015, 4016, 
    4017, 4018, 4019, 3105, 6677, 6686, 
    64, 118
  ) 
  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 0.00043

JSON explain

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