If you live somewhere in this big, beautiful world that does not use dollars ($) for currency, welcome!
In Recipe Cost Calculator you can choose an alternative currency symbol in your account settings.
In addition to being able to change your currency symbol, you can change your delimiters, and you can also opt to round your amounts to whole numbers if you use a currency that does not use fractional money (like cents).
Change Your Currency Display Settings
1. Click on the user drop down menu (top right side of screen in your account)
2. Click on "Account Settings"
3. Click "Settings" on the left side navigation menu
4. Choose the currency display options of your choice!