Calculate the following cross exchange rates: The dollar is trading at S^¥/$ = ¥100/$ and S^SFr/$= SFr1.60/$. What is the yen per franc rate, S_0 ¥/SFr? Solution franc/dollar= 1.6 dollar/franc= 1/1.6 dollar/franc= 0.625 yen/dollar= 100 Multiply both dollar/franc*yen/dollar .625*100 yen/franc= 62.50.