"Suppose that inventories were $80 billion in 2003 and $70 billion in 2004. In 2004, accountants would:" add $10 billion to other elements of investment in calculating total investment subtract $10 billion from other elements of investments in calculating total investment. add $45 billion (= $90/2) to other elements of investment in calculating total investment. subtract $45 billion (= $90/2) from other elements of investment in calculating total investment