Yeah Rupeshari the Visa office does calculate points. After they have done the screening for the linistrial list, and your are eligible for processing at the visa office, they then do background checks, security checks and calculate points against the documents that you have sent.
Visa officer then scrutinized all the education certificates, work experience and then allots points accordingly. They are some instances where ppl didn't send in their high school grades and were awarded less points for not completing 14 years of education, they got half points for providing just the Degree.
But all in all, i think that it is the overall profile of the case that counts.