What are the chances that I convert my calls from SIBM Pune, SCMHRD or SIBM Bangalore? How is the GE PIWAT given when I have a 98.0456 percentile?

It is difficult to predict your chances of converting your calls from SIBM Pune, SCMHRD, or SIBM Bangalore as apart from a good percentile in SNAP there are various factors that are taken into consideration during the selection process apart from the percentile in entrance exams. These factors include academic background, work experience (if any), performance in Group Exercise (GE), Personal Interview (PI), and Written Ability Test (WAT), among others.

Having a 98.0456 percentile is a good score and puts you in a competitive position for the admission process but that does not guarantee the final call as WAT weighted is important and big enough to ignore. 

So, to increase your chances of converting your calls, you should prepare well for the GE, PI, and WAT rounds by improving your communication and presentation skills, staying updated with current affairs, practicing writing essays, and answering interview questions.