A method comprises determining a first price of an item in a first group for sale utilizing a processor, offering the item in the first group for sale at the first price, selling one or more orders for the item in the first group at the first price to a purchaser, delivering the item to the purchaser, pricing the item at a second price with the processor based at least on the one or more sales of the item at the first price, and offering the item for sale at the second price. The pricing includes at least one of: (i) determining if a profit at the first price is at least equal to a best profit for one or more previous price levels for the item with the processor and increasing the first price to the second price if the profit at the first price is at least equal to the best profit for the one or more previous price levels for the item, wherein the second price is greater than the first price, or (ii) determining if the profit at the first price is less than the best profit for the one or more previous price levels with the processor and reducing the first price to the second price if the profit at the first price is less than the best profit for the one or more previous price levels, wherein the second price is less than the first price.