Changing the Finance settings
To edit your currency settings, firstly hover over your profile picture and click ‘Settings’.
From there, you will find the 'Financial Settings' under the Admin category.
Better Proposals isn’t a financial system but it does display your sales pipeline and it only makes sense to show you in the currency you trade in. To change your currency, click the drop down box and select the one you like.
Proposal Currency and Taxes
If you want to change the default currency you display on your proposals or switch taxes on/off, follow the instructions here for editing your branding.