Suppose the interest rate on 6-month treasury bills is 7 percent per year in the United Kingdom and 4 percent per year in the United States. Also, today’s spot exchange price of the pound is $2.00 while the 6-month forward exchange price of the pound is $1.98. By investing in U.K. treasury bills rather than U.S. treasury bills, and covering exchange-rate risk, U.S. investors earn an approximate extra return for 6 months of: