El Bohio SJ, a popular spot in Piones that made a famous dish, 'alcapurria', uses 20 pounds of plantain each day in alcapurrias. Order costs for alcapurrias are $10.00 per order, and carrying costs are 4 cents per pound per day. Lead time for each order is three days, and the alcapurria itself costs $3.00 per pound. At what point should the owner reorder plantains?