Suppose your company imports computer motherboards from Singapore. You have just placed an order for 20,000 motherboards at a cost to you of 151.80 Singapore dollars each. You will pay for the shipment when it arrives in 30 days. You can sell the motherboards for $139 each. The current exchange rate is S$1.2231/$. a. What is your profit at the current exchange rate? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is your profit if the exchange rate goes up by 15 percent prior to the shipment's arrival? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is your profit if the exchange rate goes down by 15 percent prior to the shipment's arrival? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) d. What is the percentage change in the exchange rate that would result in a break-even profit? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)