Checkout > Cart view issue

I think that the file Display > Checkout > Cart is responsible for both of these views. The workflows is cart,login_address,shipping_payment_confirm_cart_status_fields,end and I think the first view is from the cart at the beginning, the second view is step 3.

My issue is on the cart view I wanted to change the wording for Final Total (in fact I wanted to change the field entirely to sub total) - I think displaying a claimed Final Total before proceeding to shipping choice page is misleading.
The problem I have is that as it appears both views come from the same file, if I change the Final Total to Sub Total it changes the Final Total on the 3nd screen too. image missing http://www.hikashop.com/media/kunena/attachments/legacy/images/cart1.jpg

That's indeed the case.
The only option you have is to edit the file cart of the view checkout via the menu Display->Views. There, you would have to have something like this:
if($this->step<=1){
echo JText::_('HIKASHOP_TOTAL');
}else{
echo JText::_('HIKASHOP_FINAL_TOTAL');
}