Rounding on VAT causing Subtotal not to match

Hi,

I have installed this module but encountering an issue with Subtotal. This differ by 1 penny. Here is the scenario.

Added two products with price exclusive of VAT (£10.83 and £8.33).
In the basket it display product price as £13 and £10 respectively.

Subtotal excluding VAT £19.16
VAT 3.83
Subtotal £22.99

You can see the difference of 1 penny.

Is there any workaround this?

Thanks