What are the steps to solve this with no excel please.

Problem #1: Suppose you (U.S. investor) purchase a 10-year, AA-rated Swiss bond for par that is paying an annual coupon of 9 percent. The bond has a face value of 1,000 Swiss francs (SF). The spot rate at the time of purchase is SF1.05/$. At the end of the year 1, the bond is upgraded to AAA and the yield decreases to 8.25 percent. In addition, the SF depreciates to SF1.15/$. a) What is the dollar loss or gain to a U.S. investor who holds this bond for a year? b) What is the dollar loss or gain is due to (pure) exchange rate risk? In order to answer this, consider the scenario where there is no change in the interest rate risk. c) What is the dollar loss or gain is due to (pure) interest rate risk? d) Finally, compute overall holding period return, holding period return due to interest rate risk alone, and holding period return due to exchange rate risk alone. Problem #1: Suppose you (U.S. investor) purchase a 10-year, AA-rated Swiss bond for par that is paying an annual coupon of 9 percent. The bond has a face value of 1,000 Swiss francs (SF). The spot rate at the time of purchase is SF1.05/$. At the end of the year 1, the bond is upgraded to AAA and the yield decreases to 8.25 percent. In addition, the SF depreciates to SF1.15/$. a) What is the dollar loss or gain to a U.S. investor who holds this bond for a year? b) What is the dollar loss or gain is due to (pure) exchange rate risk? In order to answer this, consider the scenario where there is no change in the interest rate risk. c) What is the dollar loss or gain is due to (pure) interest rate risk? d) Finally, compute overall holding period return, holding period return due to interest rate risk alone, and holding period return due to exchange rate risk alone