Connect each measure to a decision. Revenue, margin and turnover answer different questions. Agree which action a manager might take.
Document the formula, unit, period, data source and owner. If departments calculate the same term differently, align the definition first.
Read results in context: period length, seasonality, discounts and delayed data affect the number. A percentage change alone does not explain its cause.
Record a hypothesis to check and a next action for each significant deviation. Dashboard value depends on decision clarity more than chart count.