Sensitivity analysis
Testing how the valuation moves when one assumption is shifted: the rate, the growth rate, the margin.
How to read the number
It gives not the correct value but a range, and shows which assumption decides the result — usually the rate and the terminal part.
When the metric lies
Changing parameters one at a time loses the links between them: the rate and the growth rate move together, and shifting one alone describes an impossible world.
Also known as: sensitivity table