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 (
    125139, 125138, 125136, 125123, 125652, 
    125492, 125025, 125024, 125020, 125568, 
    125566, 124982, 125496, 124870, 124859, 
    124858, 125412, 125411, 124963, 124733, 
    124731, 124573, 124546, 124358, 124737, 
    124650, 124299, 124231, 124217, 124215
  ) 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 1) 
GROUP BY 
  cscart_product_prices.product_id