PSAT Grade Scale

I want to get the Grade Scale of PSAT but I don’t find it so can you provide me the Grade Scale and also provide me a website related to this grade scale?

[Shaleen]

A PSAT report contains a separate scale for each of the three section types (Critical Reading, Math, and Writing Skills) on a scale from 20 to 80. The selection index is scored on a scale of 60 to 240, and is used to determine eligibility for National Merit Scholarship awards. To view the grade scale according to score & percentile basis I am providing you the attachment. Given below is the link where you can get the details.

testmasters.net/PsatAbout/Scoring-Scale