Google's own instructions for reversing an e-commerce transaction seem to contradict themselves regarding the unit price.
In the instructions it states
The item field has a positive per-unit price and a negative quantity.
yet, the code sample has a negative per-unit price and negative quantity.
_gaq.push(['_addItem', '1234', // order ID - necessary to associate item with transaction 'DD44', // SKU/code - required 'T-Shirt', // product name 'Olive Medium', // category or variation '-11.99', // unit price - required '-1' // quantity - required ]);
Which is correct?