The point was showing how the pricing and costs adds up.

A lot of founders don’t get what products they use at Stripe and that the cost adds up as a % of revenue.

% of revenue makes sense for payment processing, does it really make sense for SaaS products (billing, tax?) ? What’s the rationale?

About offering alternatives for fintech software (such as billing, tax), with a pricing that does not take a cut on revenue, this is exactly what we are building.