Hi Sabir,
If you Press F9 does the sheet Update?
If it does:
Go to File - Options
Cick Formulas and Set Calculate options to Automatic
If not, have you entered the correct formula in the appropriate cells?
Which cells are not updating?
Upload a copy of the Spreadsheet to the Cloud (OneDrive, DropBox . . . etc.), then post a link here and I will have a look for you . . .