How to Change the Number Format on a Mac

Changing Number Format on the System

1. 
   Click on the Apple menu. It's the black, apple-shaped icon in the upper-left of your screen.
2. 
   Click on System Preferences.
3. 
   Click on Language & Region. It's at the top of the preferences window.

   1. Click on ⋮⋮⋮⋮ in the top bar of the dialog box if you don't see all the system preferences icons.
4. 
   Click on Advanced. It's in the lower right corner.
5. 
   Click on the drop-down menu next to "Grouping."
6. 
   Click on a separator. You can choose from a comma, period, apostrophe, space, or none, to select how the system will format larger numbers like 1,000,000.
7. 
   Click on the drop-down menu next to "Decimal."
8. 
   Click on a separator. You can choose from a comma or period to select how the system will format numbers with decimals.
9. 
   Click on the drop-down menu next to "Measurement Units."
10. 
    Click on a system of measurement. You can choose from Metric, U.K., or U.S. You have now changed the number format on your Mac.