The useful question is not "what mark did they get?"
A mark tells a teacher that something went wrong. SPI Maths reporting is designed to show what went wrong, why it matters, and what to do about it. That distinction is what makes the reports useful for busy classrooms.
Because assessment items are tagged by mathematical object, structure, literacy action and likely misconception, the report can translate pupil responses into a diagnosis that is far more specific than a percentage.