Proportion
Enumerated exactly, not simulated: the Wald interval delivers 0.8775 where it promises 0.95.
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Clopper–Pearson Interval
Exact here means the coverage is guaranteed rather than approximated. The price is an interval that is wider, and not centered on your estimate.
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Wilson Score Interval
The textbook proportion interval can put its lower bound below zero. Inverting the test instead gives bounds that stay inside the range.
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Rate of Change
Learn why a growth figure is a ratio rather than a percentage, why the base period decides the number, and why raw counts need a denominator.