Barclays Bank believes the Australian dollar $($AU$$)$ will appreciate over the next $9$ days from $$\mathrm{.}70$ to $$\mathrm{.}73.$ The following annual interest rates apply:

Currency Lending Rate Borrowing Rate

Dollars $6\mathrm{.}73\%7\mathrm{.}20\%$

Australian dollar $($AU$$)6\mathrm{.}80\%7\mathrm{.}28\%$

Barclays Bank has the capacity to borrow either AU$$10$ million or $$7$ million. If Barclays Bank's forecast is correct, how shall Barclays Bank implement its speculating trading activities and what will its dollar profit be from speculation over the nine$-$day period $($assuming it does not use any of its existing consumer deposits to capitalize on its expectations$)?(30/360$ convention used for the interest calculation, i$.$e$.,$ assuming $360$ days a year$)$