Derek Tosh and Yen-Dollar Parity. Derek Tosh is attempting to determine whether US/Japanese financial conditions are at parity. The current spot rate is a flat 489.00/$, while the 360-day forward rate is $84.90/$. Forecast inflation is 1.096% for Japan, and 5.897% for the US. The 360-day euro-yen deposit rate is 4.703%, and the 360-day euro-dollar deposit rate is 9.498%. a. Calculate whether international parity conditions hold between Japan and the United States. b. Find the forecasted change in the Japanese yen/U.S. dollar ($) exchange rate one year from now