I am in Setup>>Create>>Objects>>MyCustomObject>>PercentField(Value_c).

I have a validation set for this percent type field: Value_c< 0 ||  Value_c> 1.0 for which It displays error if this condition satisfies.

My Problem:

Whenever there is a 'blank' value sent to Value_c, it automatically reflects as 0%.
I want it to reflect as a simple blank in the field.

Please Guide!