# Rounding Service



Socotra will sometimes round fractional values to a certain precision level, such as when required to confirm to precision levels specified in [Data Extensions](/configuration/data-extensions/overview). When it does this, it will use the rounding method specified in the tenant configuration.

Each data extension property can be configured with a different rounding mode with its `roundingMode` property. If no method is specified for a property, the system will use `halfEven`.

Each of the following rounding modes are available:

* `halfEven`: Rounds towards the "nearest neighbor" unless both neighbors are equidistant, in which case, rounds towards the even neighbor. This is the default.
* `ceiling`: Rounds towards positive infinity.
* `down`: Rounds towards zero.
* `floor`: Rounds towards negative infinity.
* `halfDown`: Rounds towards the "nearest neighbor" unless both neighbors are equidistant, in which case rounds down.
* `halfUp`: Rounds towards the "nearest neighbor" unless both neighbors are equidistant, in which case rounds up.
* `up`: Rounds away from zero.