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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 (
    1306, 1307, 1310, 1308, 1309, 1311, 1314, 
    1313, 1318, 1319, 1315, 1316, 1317, 
    56, 1299, 1298, 1297, 1260, 1296, 1295, 
    990, 1294, 1293, 1129, 1278, 1269, 1261, 
    1292, 1291, 1290, 1289, 1288, 1287, 
    1286, 1285, 1284, 1283, 1282, 1275, 
    1281, 1280, 1279, 1274, 1145, 1134, 
    1273, 1272, 93
  ) 
  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 0.00071

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}