From the archive
Wednesday, 2 September 2026
VLOOKUP fetches a per-seat price, then it's just one multiplication to turn that into a bill.
You handle billing for a small SaaS company that resells seat-based licenses. Four customers are signed up on different plans, and the price per seat for each plan lives in a reference table to the right. Work out each customer's monthly bill in column D, then total the month's billing in D6.
A new exercise every morning, plus every day that came before it — a back catalogue that grows by one a day, whether or not you were here for it.
The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.