I have a total value that I would like to keep but I would also like to decrement it every time a certain kind of user creates the resource. For example I have-

```
if @user == "Premium"
        @resource.decrement!(:total)
end

```

But I would also like to show the first :total that I had. So in other words I would like the original value and the decremented value to show on the view page. like so-

```
<%= resource.total %>
<%= resource.decremented_value %>

```

how could I do that? Would I need to create another column in my database?