Marketing computes the classic conversion: «how many users first viewed the /pricing page and then clicked the buy button». Order matters: not «ever saw pricing and ever clicked buy», but precisely «the buy click happened after the very first /pricing view». Count the number of such users in the funnel. Hint: for every user you need two moments — the first /pricing view (event of type page, with payload key path equal to /pricing) and the first buy click (event of type click, with payload key target equal to buy); the user is counted when the second moment is strictly later than the first.