Math Problem: Show detailed calculations

The following exchange rates for various banks are listed in the Wall Street Journal. Is there

an arbitrage opportunity? If so$,$ compute the profits earned in one round of transactions if you

begin with $5,000,000.$

Imperial Japan Bank

$89\mathrm{.}345\frac{}{A}$$

Credit Suisse Group

$87\mathrm{.}275\frac{}{S}Fr$

National Australia Bank

$1\mathrm{.}150$ A$$/$SFr