Using consumer prices (inflation of ~3%) to tackle that "problem" sure raises my bull-shito-meter, especially for companies operating mostly outside of the US or europe (production, suppliers ...).
I dont claim to know the numbers, but I doubt its a calculation u can do on a napkin or a short forum post.
You'll note some of the things I stated as given assumptions.
The first big ask is that inflation is a constant. Inflation varies year to year, in sections of the market, and even then we aren't accounting for the market crash of 2008. If you somehow believe that my numbers were 100% accurate, you failed to grasp that I was setting up a rough estimation. Assuming you wanted 100% accurate numbers you'd have to review governmental reporting for each year, and do the math for each individual year. That 100% accurate answer takes more than 4 times the effort of my 90% accurate answer. If you'd like to do that extended math, help yourself.
Company headquarters, and even manufacturing facilities don't matter. To the consumer the manufacturing plant could be down the street, half way around the world, or in a parallel dimension. The manufacturing facility influences only the associated materials cost for the product, as the resources used to get the goods to point of sale are lumped into the gross price. Adding in currency conversion rates is a needless complication, because they don't matter. The consumer only sees the shelf price. We are unconcerned with the price the manufacturer actually pays (and their subsequent profit margin).
Currency doesn't matter. To have to state this is stupid, but relative currency value fluctuates daily. Despite this, the cost of a card doesn't fluctuate. Fluctuating currency values are built into the selling price of cards. Even then, value fluctuation is generally insignificant. Assuming a 10% relative fluctuation in the relative value of currencies, the parent company eats a loss somewhere and a gain in another location. 2+3 = 7-2 = 900-901+6.
At this point I'm supposing that you want to factor in something else needlessly complex. How about AUD =/= USD =/= EURO =/= German Mark? The reason I chose one currency is because it makes things easy to relate. If you want to be pedantic I suggest you start calculating the relative value of Franks, Pounds, AUD, USD, Marks, and a dozen other Western European countries old currencies. Kinda seems like you're looking for a justification as to why I might be wrong then, without regards for contents of the argument.
At this point, I've justified my reasoning. It's time for you to do the same. Assuming you have no argument, I'll assume you've acquiesced to the point. If you can come back an prove that my assertion that pricing is actually in line with inflation, I'll gladly admit that I am wrong. It's your move
@Folterknecht .