I appreciate the way you've laid out the question. It's natural to wonder about what you just asked.
First, on the businesses on the interchange-based pricing model, I want to clarify that, yes, they've seen the interchange change. They were discussing the price reduction in certain circumstances. They've also seen the tax increase on the processing costs. Actually, their average costs have gone up rather than down, because we're passing everything on. The businesses on the blended scheme have been insulated from that net increase.
To your question as to why we don't just change the blended price, in principle, anything is possible, of course, but the card networks change their pricing all the time. There are regular rate updates made to cross-border transactions or transactions for this sector or what have you, and of course, the blended price spans lots of different payment methods.
We are aggregating literally hundreds of different prices together into a single, stable, predictable amount. It would be extremely unfriendly and unfavourable for businesses if every time one component of that bundle changed, we updated the sticker price. It would undermine the purpose.
In general, the prices that Stripe is on the receiving end of have been increasing rather than decreasing over time. For example, our total card scheme costs have increased over the past couple of years—reasonably materially—but again, we have not changed the 2.9% plus 30¢.
Again, I don't want to falsely pretend that Stripe couldn't permanently change the blended pricing construct, but it would seem like a real departure from the core value proposition around stability that we've been providing if we were to change it to 2.89% or 2.88%, or something like that. If we were to go into that world of changing...in response to fluctuations in the underlying costs, it would become 2.93% and 2.95%, and it would be going down a road that is less favourable for businesses.
Again, it's closer to how things used to be, when they were fluctuating and volatile. I think the reason many businesses switch to Stripe is that they really value the certainty and stability that we work so hard to provide.