We often need to format the numbers to display the appropriate number of
decimals, dollar signs, percentage, red (for
negative dollars), etc. It is best to keep numbers describing similar items as
uniform as possible.
If we have the number 3.53262624672423, we would probably have to make the
column wider and at the least bore most people. We need to set the number of
decimal places to what is important. If this was a dollar figure that had
calculated tax it should be $3.53.
Here is a screen displaying what you would see if you select a cell (or group of cells) and from the FORMAT menu -- go down to format -- click on number.
373697