Fewer items were put in the wrong locations in its distribution centers, and it shipped 35% more units with the same number of workers as a year ago. That helped cut fulfillment costs by $22 million last quarter, despite a sales increase of 15%.ANTICIPATING DEMAND
Using software to more accurately forecast purchasing patterns by region, Amazon (AMZN
) slashed inventory levels by $31 million, or 18%, in the fourth quarter.OPENING A MARKETPLACE
Allowing other sellers to offer used books and other merchandise on Amazon.com helped boost unit sales in the holiday season by 23%, to 38 million. Amazon's cut ofrevenues carries gross margins of at least 85%.