Relative Comparisons
Compare values using ratios, percentage differences or multiples when raw gaps are not sufficient.
How to prepare for the CSNT
Use 601 original multiple-choice questions to extract the right values, preserve units and precision, and verify each calculation. The bank is independent practice based only on public skill descriptions; it contains no recalled or secure test items.
Core concepts
Concept 1
relative size
Exam cue: Identify which value is the comparison baseline.
Concept 2
multiples
Exam cue: Use a ratio or percentage when scale matters more than the raw difference.
Concept 3
percentage comparison
Concept 4
choice of baseline
Risk pitfalls and guardrails
Switching the baseline halfway through.
Guardrail: Do not copy official questions, invent a fixed test length or weighting, ignore units, round too early, infer score from difficulty or rely on returning to an earlier item.
Confusing percentage points with percentage change.
Guardrail: Do not copy official questions, invent a fixed test length or weighting, ignore units, round too early, infer score from difficulty or rely on returning to an earlier item.
Memory anchors
Relative needs a base
Name the denominator before calculating.
Multiple means divide
How many times as large is a ratio.
Points are not percent
Subtract percentages for percentage-point difference.
Scale changes meaning
The same raw gap can have different relative importance.
State the direction
A is what percentage greater or smaller than B.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Office A handles 240 cases and B 300. B is what percentage of A?
A £72 item is compared with a £60 item. How much more expensive is it relative to £60?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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