Working backwards from revenue
Most marketing reports are written to be survived rather than read. Impressions up, reach up, engagement up, and no clear line from any of it to a customer who paid you money.
We work backwards from revenue. What does a customer cost to acquire, what are they worth, and which channels change those two numbers? Sometimes the honest answer is that your website converts badly and no amount of traffic will fix it — in which case we say that before taking a media budget.