A bank issues a 6-month, USD 1 million CD at 4% and funds a loan in ARS at 6.5%. The spot rate for ARS was ARS2.27 per USD at the time of transaction. In 6 months, the ARS depreciated to ARS 2.3 per USD. What is the realized nominal annual spread on the loan?
B. -0.19%
请老师解释下这题,谢谢!