There is an option to use American, Fractional or Decimal odds on the Comm100 website. Below is how you can change the odds preferences for your account:

Desktop

• Select your wallet beside the deposit button.
• Once in that menu, you will see "odds format" at the bottom.
• Please select the type of odds format you want to use from the drop-down list. 

Mobile

• Click "Account" on the homepage.
• Once in the menu select "Preferences".
• Please select the type of odds format you want to use from the drop-down list.