Is it possible to change the existing currency i am using to USDollar?

Hello there, escotoner. 

We can change the Home Currency to US dollars. However, the currency symbol for existing transactions will change, but the amounts will still be the same. Changes made will apply to future transactions. 

I'll show you how to change that:

1. Go to the Gear icon and click Account and Settings. 
2. From the Advanced tab, scroll down to see and select the Currency section. 
3. Select USD - United States Dollar from the Home Currency drop-down. 
4. Click Save and then Done. 

You can also check out this article for more details on how our Multicurrency works. 

Get back to me if you need anything else. Take care always!

@escotoner

Where is your company located? I may have a workaround for your case.