New orders for big-ticket durable goods fell 3.6 percent in February, the biggest decline since July, the Commerce Department said Wednesday. Orders for manufactured durable goods, everything from coffee percolators to pickup trucks, fell $4.6 billion to $123.7 billion last month after a 2.9 percent decline to $128.3 billion in January. It was the first back-to-back monthly decline since the spring of 1986, when declines occurred over four consecutive months.