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 (
    71200, 71013, 70292, 70814, 71176, 71156, 
    71155, 71154, 71153, 70919, 71125, 
    71078, 71113, 70994, 70541, 71108, 
    71015, 70830, 71012, 70827, 71064, 
    71062, 71061, 71011, 70545, 70544, 
    70122, 70813, 70817, 70952, 70947, 
    70540, 70359, 70882, 70881, 70829, 
    70828, 70538, 70230, 70229
  ) 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 1) 
GROUP BY 
  cscart_product_prices.product_id