I've been trying to amend the OC backend to show Subtotal with Tax for the original Subtotal, however its been difficult as it keeps having double or triple or further taxes added on after each save in the Order Admin - Totals tab.
** It was not very clear in my other thread, the overall coding ... how it can be solved fully... so that's why I'm asking for other opinions here... and check other alternatives... As I'm not a programmer, I hope an expert could give full instructions.
All Item Prices & Item Totals are supposed to be shown with Tax as well.

So I've been thinking, is it possible to add in an additional one, retain the Original Subtotal (without Tax).. so it looks like this:
Item Price / Total
107.00 / 107.00
Subtotal : 100.00 (This original one I may hide or remove from view)
Subtotal Incl. Tax/GST : $107.00
GST Incl. : $7.00
Shipping : $5.00
Net Total : $ 112.00
Please state clearly how this can be done.... with the Item Price / Total with Tax as well.
Keeping in mind that I already have an extension that solves the front end -- Subtotal with Tax only. It appears that everytime I do something to the backend, the front end gets affected as well...
Thank you.