To change the currency of a company, follow these steps:

For more information on how to access your list of companies, consult the following article:
How to access my list of companies
2- Next, click on the "Company Settings" button in the TOP MENU.
3- Once in the edit menu, select a currency from the drop-down choices in the field “Currency” and save your choice.
Related Articles (Please refer to the links below)
- How to change the name of a company?
- How to change my company's country/province/state?
- How to change the year-end (end of the fiscal year) of a company?