Hello Viswa,
You cannot as percentile is only relative performance as compared to different candidates.
First, let me tell you about what percentile score really means - Percentile is calculated based on your performance as compared with others. For example, if you scored 98 percentile it means you are above 98% of students sitting for that exam.
So, the percentile and absolute marks have no direct relation. It could be that you got very low marks but you scored in the 100th percentile as others fared worse.
Hope this helps.
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