How to Use the Decimal Tab in Word 2007
You can use the Decimal Tab feature to line up columns of numbers in your Word 2007 documents. Although you could use a right tab to do this, the decimal tab is a better choice. Rather than right-align text, as the right tab does, the decimal tab aligns numbers by their decimal portion — that period in the number.
Display the Ruler, if necessary.
Click the View Ruler button to display the Ruler if it's hidden.
Start a blank line of text.
Choose the decimal tab stop from the Tab gizmo on the Ruler.
Set the tab stop on the Ruler by clicking the mouse at the 3-inch position.
Type the left column text.
Press the Tab key.
Type the numerical amount.
The number is right justified until you press the period key. After that, the rest of the number is left justified. The effect is that the amount is lined up at the decimal tab stop by the period in the number.
End that line of text by pressing Enter.
Repeat Steps 5 through 8 for each line in the list.
You can adjust your text by selecting all the lines as a block and then moving the decimal tab stop on the Ruler with the mouse.