Required:

A foreign exchange trader with a U$.$S$.$ bank took a short position of $5,000,000$ when the $\frac{\text{\$}}{}$ exchange rate was $1\mathrm{.}38.$ Subsequently, the exchange rate has changed to $1\mathrm{.}43.$ Is this movement in the exchange rate good from the point of view of the position taken by the trader? By how much has the bank's liability changed because of the change in the exchange rate?

Is this movement good from the trader's position?

Change in bank's liability