Hey,

CMAT exam is conducted in order to allow students to take admission into Management Or B schools of India.

The exam is conducted online and the major sections involve, Reasoning, Quants, English, General Knowledge.

Now coming to your question,

It's difficult to tell as the marks scored by candidates changes every year. Percentile represents the number of students ahead of you. That's something unpredictable.

But  seeing the past trends at 151 marks your percentile can be around 86-87 .

Hope that helps.

Thank you.