# Why don't percentages add up to 100%?

By default, DataCracker does not display all the decimal places and instead rounds the results. For example, 33.3333333333% is rounded down to 33% and 32.5% is rounded up to 33%. You can control the number of decimal places that are displayed on the screen, and thus the rounding, using

**APPEARANCE > Number**and choosing either of the top two buttons.A consequence of not all the decimal places being shown is that if you sum up the numbers manually you may often get a different result to that shown in the NET or SUM on a table.

For example say we have the following table shown to 13 decimal places:

US 33.3333333333333%

UK 33.3333333333333%

AU 33.3333333333333%

NET 100.0000000000000%

In DataCracker, rounding to 0 decimal places shows:

US 33%

UK 33%

AU 33%

NET 100%

Whereas if manually adding up the numbers you would get the incorrect result of 99%.

This shows there is no perfect approach to rounding. The approach used in DataCracker is the industry standard.