I thought the rules were as follows...
Both teams had to sell the same ten items.
The team with the most profit would win the task.
Sugar, however, placed importance on selling the items at or above their market value. This was to dissuade the candidates from underselling the items. Both teams ignored Sugar's comments about not taking the items at face value.
They undersold too many items and failed to break even or make a small profit. For example, say the total price of the items was £500 pounds, they would have sold them all for less. Ben's team made a bigger loss.
I think that was how it panned out. I don't think there was any confusion. If one team sold most items at or above their market value, they would have won. Seems simple enough to understand.
Sugar said sell the items but consider their market value. The likes of Philip and Ben ignored the market value because they're were too concerned about selling. They had a finite time span to sell the stuff so they ignored the market value and let the buyers dictate the terms of the sale. This was a fundamental mistake. The skeleton was valued around 150 or so pounds but Ben's team sold it for around 50 quid. It was, arguably speaking, the worst performed task in the history of The Apprentice. Both teams ignored the point of the task.
Perhaps the task was too hard. Given six or so hours to sell items at their market price? That's hard to do. If you've got an expensive rug to sell, you need to travel to the more classy rug stores (not markets lol) and that takes time. However, no-one on any team ever said "let's find a posh carpet store and try to sell it to them." They did make some big mistakes.
I guess things can only get better. Can't get much worse!