Suppose your company imports computer motherboards from singapore. the exchange rate is currently 1.2839 s$/us$. you have just placed an order for 25,000 motherboards at a cost to you of 235.50 singapore dollars each. you will pay for the shipment when it arrives in 90 days. you can sell the motherboards for $200 each. what is your profit at the current exchange rate? (do not round intermediate calculations and round your final answer to 2 decimal places.) profit at the current exchange rate $ what is your profit if the exchange rate goes up by 10 percent? (do not round intermediate calculations and round your final answer to 2 decimal places.) profit if the exchange rate up by 10% $ what is your profit if the exchange rate goes down by 10 percent? (do not round intermediate calculations and round your final answer to 2 decimal places. negative amounts should be indicated by a minus sign.) profit if the exchange rate down by 10% $ what is the break-even exchange rate? (round your answer to 4 decimal places. (e. g., 32.1616)) break-even exchange rate s$ /$ what percentage rise or fall does this represent in terms of the singapore dollar versus the u. s. dollar? (input the value as positive numbers.) percentage change $ %