Subtotals or Vlookups or Both.

Hi All 

I would be grateful if someone could help me to find a solution 

 am working on a sheet, such as 

and I have applied a filter for the Narrative column "cakes". 

So after this,  I need to show the count total for the Period column eg "201902" 

I'm trying to achieve something like this at the end.

I don't want to be counting multiple 201806's and getting the total of them wrong.

Thanks 

Kwesi