WBUT at w.b , gives result in SGPA instead of percentage.i want to know that what is process of converting the result frm SGPA to Percentage

WBUT means WEST BENGAL UNIVERSITY OF TECHNOLOGY. my college name is DR.B.C.ROY ENGINEERING COLLEGE and it is in Durgapur city of W.B. the result is given in form of -- SGPA ODD (5th.) SEMESTER: 7.68 SGPA EVEN (6th.) SEMESTER: 7.73 YGPA 3rd. Year: 7.7 Result P - Passed And Promoted