I Wanted to know if there is any planning and operational variance formula for fixed overhead varaiane i.e the fixed overhead expenditure & fixed overhead volume variance (fixed overhead efficiency and fixed overhead capacity variance).
No – the exam does not ask planning and operational variances for fixed overheads. (and you should not just learn formulae anyway – the exam deliberately tests that you understand what it happening)
What is covered in the my free lectures is what is needed for the exam.