If Kevin was to invest in GBP$,$ and the exchange rate was to remain the same one year from now, i computed the answer to be $12\%.$ If the exchange rate one year from now changed to $$1\mathrm{.}4/1$GBP$.$ The return I got was $28\%.$ However, the answer choices listed was $-2\%,8\%,10\%,$ and $12\%.$ Where did I go wrong?