If Boeings dollar aircraft prices increase 20 percent and the yen/dollar exchange rate declines 15 percent, what

Question:

If Boeing’s dollar aircraft prices increase 20 percent and the yen/dollar declines 15 percent, what effective price increase is facing Japan Air Lines for the purchase of a Boeing 747? Would Boeing’s margin likely rise or fall if the yen then depreciated and competitor prices were unchanged? Why?

Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...