SELECT 
  cscart_product_prices.product_id, 
  MIN(
    IF(
      cscart_product_prices.percentage_discount = 0, 
      cscart_product_prices.price, 
      cscart_product_prices.price - (
        cscart_product_prices.price * cscart_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_product_prices 
WHERE 
  cscart_product_prices.product_id IN (
    104632, 104631, 104630, 104629, 104628, 
    104627, 104626, 104625, 104624, 104623, 
    104622, 104621, 104620, 104619, 104618, 
    104617, 104616, 104615, 104614, 104613, 
    104612, 104611, 104610, 104609, 104608, 
    104607, 104606, 104605, 104604, 104603
  ) 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 1) 
GROUP BY 
  cscart_product_prices.product_id