Comparing percentages always has the potential to invoke that sort of confusion, but FWIW I'm pretty sure the headline is written correctly. If it were subtracting percentage values from one another rather than dividing, it would be "percentage points" rather than "%".
That said, the article itself is just silly, a true puff piece. I think one could make a more substantive (and more interesting) argument around the idea of the "basket of goods" measurement as a basis for measuring inflation in the first place, as goods make up a smaller and smaller percentage of our total expenses.
That said, the article itself is just silly, a true puff piece. I think one could make a more substantive (and more interesting) argument around the idea of the "basket of goods" measurement as a basis for measuring inflation in the first place, as goods make up a smaller and smaller percentage of our total expenses.