Expression: Complete expense

[Tom]

Dear friends

Is the following expression?

1- What is the total expense of your house per month rent included?

2- Oh, it is 10-000 $ per month.

Thanks for your help

Tom

[Pamela]

I'd say "What is the total rent of your house per month

[Alan]

Hi Tom,

Is your question about expense, total or complete?

Alan
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[Tom]

Sorry Alan; my mistake.

Are my sentences grammatically correct?(Is comma required after month?)

1- What is the total expense of your house per month, rent included?

2- Oh, it is 10-000 $ per month.

Thanks for your help

Tom

[Alan]

Hi Tom,

You asked: