Hello aspirant,
For 49.50 % we can assume it as 50% by following the concept of round off figures.But I would like to guide you to talk to some experts.Or to the person who is holding the duty for application filling offline for the respective exam you are looking for.
And also if you are filling it online you can check or read the guidelines.
Hope it helps.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile