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 (
    59482, 59481, 59480, 59479, 59478, 59477, 
    59476, 59475, 59474, 59473, 59472, 
    59471, 59470, 59469, 59468, 59467, 
    59466, 59465, 59464, 59463, 59462, 
    59461, 59460, 59459, 59458
  ) 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 1) 
GROUP BY 
  cscart_product_prices.product_id