Suppose your company imports computer motherboards from Singapore. The exchange rate is currently 1.2864 S$/US$. You have just placed an order for 30,000 motherboards at a cost to you of 232.50 Singapore dollars each. You will pay for the shipment when it arrives in 90 days. You can sell the motherboards for $196 each.

What is your profit at the current exchange rate?

What is your profit if the exchange rate goes up by 10 percent?

What is your profit if the exchange rate goes down by 10 percent?

What percentage rise or fall does this represent in terms of the Singapore dollar versus the U.S. dollar?