“We have the data, we just cannot see what it is telling us” is one of the most common things a business says about its own systems. Usually the data is fine. What is missing is a question.
Ask it all three
The three questions give three different answers, and that is the entire point. Parts brings in the most money. Callouts consume the most time and earn the least. June is the worst month for late payment.
Every one of those facts was already in the export. Nobody was hiding anything. They were just spread across two hundred and forty rows in a shape that made you do the arithmetic yourself, which means in practice nobody ever does.
Click a bar
Clicking filters everything underneath to that slice, and the month range narrows it further. That is the difference between a chart and a picture of a chart: you can interrogate it, so the second question you think of is as cheap to ask as the first.
Most reporting requests are really this. Not “build me a dashboard” but “let me ask a follow-up without emailing somebody”.
On the colours
Every bar prints its own value, and the answering bar says “highest” in words rather than only being a different shade. If you cannot distinguish the two colours, the chart still answers the question. That is not a nicety: colour alone is the most common accessibility failure in business reporting, and it is trivial to avoid if it is considered at the start.
What this is not
An invented business. The numbers are generated from a fixed starting point so they are the same on every visit, and they describe nobody. They are the right shape, not real performance.
If you have an export somebody runs monthly and nobody reads, that is usually a reporting problem rather than a data problem. Describe the question you actually want answered and it is normally clear within a paragraph whether that needs a build or a view. It is also worth knowing which recurring tasks earn the effort before committing to anything.