Earlier quoted context omitted.
Here in Australia we seem to be having high inflation of food, which the main supermarkets (a duopoly) are blaming on the cost of goods. Meanwhile, they've both reported their highest ever company profits. :( So, clearly they're full of shit about the cost of goods being the cause rather than their own price gouging.
Record profits in a period of inflation is not surprising. If the value of the Australian dollar halves, then a company doubling it's raw profit figures is really just staying maintaining the same profits in real value.
The problem in Austrialia is a lack of competition, hence Woolworths can get a 5.9% profit compared with say Tesco in the UK with 3.8% profit (the UK having far more competition)
Not only that but while demand is decreasing, profits are increasing. That's a ridiculous system and shows a broken market.