Tax and GST seem to be separate

[Kenton]

Hi,

My tax is showing as 0% but the 10% Goods and services tax (GST) is added on afterwards.

This is not quite right as the Postage is also subject to GST.



Should read:
10% Tax
Sub Total: $84.00
Postage: $9.45
Includes GST: $8.50 ($7.64 goods and $0.84 postage)
Total: $93.45

I am really confused as to where to start

zc 1.5.5a
Australia Post Shipping Module 2.1

Thanks
Kenton