What will be my % in cat for slot 1 if my score is QA-30, DILR-27,VA- 78?? Pls tell asap.

Looking into the resemblance pattern of the paper with that of the previous year,  with almost the same difficulty level and assuming that the number of candidates appearing for the test is also approximately the same, predictions from various score predictor apps and institutions reveal that a score of 65+ in VA,  33-35 in DI-LR and since quants was quite similar to 2015,  a score of 62-65 will fetch you 99+ percentile in each section aggregating it to 99 percentile overall. Looking into your score, you would easily achieve 99+ percentile in VA-RC, 97-99 percentile in DI-LR and around 82-85 percentile in quants, and with an aggregate score of 135, you will easily land to somewhere between 96-98 percentile.
* note:all the above percentiles that I have mentioned have been based upon past records and estimates for this year.
Good chances of getting calls from IIMs provided you meet certain other requirements of those institutes as well.
All the best for your future!!