A company based in Country D, whose currency is the D$, has an objective of maintaining...

A company based in Country D, whose currency is the D$, has an objective of maintaining an operating profit margin of at least 10% each year. 

Relevant data:

   • The company makes sales to Country E whose currency is the E$. It also makes sales to Country F whose currency is the F$. 

   • All purchases are from Country G whose currency is the G$.

   • The settlement of all transactions is in the currency of the customer or supplier.

Which of the following changes would be most likely to help the company achieve its objective?