Product A is one of the products sold by a super-market. This product comes from PT X which is obtained by order. If the daily demand of product A averages 234 pieces, lead time 3 days, the standard deviation of demand 20% of daily demand. On what amount should the supermarket re-order the product if the supermarket wants the possibility of meeting the needs of customers 95%? How many sets should the supermarket order? What is the maximum stock the supermarket has?