Total Direct material cost variance help needed.

I have a Managerial Accounting exam today and u can't seem to understand this question.

I have to calculate Total direct material cost variance from the following information...

Budgeted Direct material 4kgs @£8 per Kg
Budgeted Production units 2000 per year
Actual Direct material 19000 Kgs @£121000
Actual production units 5000 per year.

Can I please have a detailed solution for this. Thanks a lot.

Total Direct material cost variance help needed.