Hey Mona, percentile predictions are typically difficult to make since they are influenced by many factors hence you should use this as a tentative score vs percentile and is subject to changes. Around 28-30 marks out of 150 in the SNAP test should fetch you around 35 percentile based on the 2020 scores. For further calculations you should use this percentile calculator: https://bschool.careers360.com/snap-percentile-predictor