Choose the right visual
Trends over time
Composition and mix
A pie or donut chart shows one period. If you want composition over time, ask for stacked bars or a stacked area chart instead.
Explaining a change
A waterfall bridges two totals with signed changes. It is not a chart of account balances — if you want the levels themselves, ask for bars.
Conversion and stages
Headline numbers
A delta is colored by business meaning, not by sign. A cost coming in under plan reads as good news even though the number is negative.
Interactive visuals
A visual reads your Model but cannot write to it. Moving a slider previews an outcome; it does not change a saved assumption. To change the Model itself, ask Ari to update the Variable or formula, or edit the value in a Table Block.