How to store Model in view to variable in Controller

Question

How to store editmodelfor to a variable so i can use in controller

 

example:

<div class="form-group">

@Html.LabelFor(model => model.total_card, new { @class = "control-label col-md-2" })

<div class="col-md-10">

@Html.EditorFor(model => model.total_card)

@Html.ValidationMessageFor(model => model.total_card)

</div>

</div>

i wanna store result of that code in a variable 

i was try:

var total_card= model=>model.total_card

but its still not works