Score of SC Category Rank 1-100- 83.67 %
Score of SC Category Rank 101- 165- 45.83 %
Score of SC Category Rank 501- 122- 33.89 %
Score of SC Category Rank 1001- 104- 28.89 %
So your mark should be approximately 126.07

For sc category rank not in general..

For which examination