Final answer:
Percentage measures based on small divisors are significantly affected by abrupt changes in behavior, which can lead to large percentage changes and potentially misleading interpretations.
Step-by-step explanation:
Percentage measures based on small divisors are unduly affected by abrupt changes in behavior. When the divisor in a calculation of a percentage is small, even a small numerical change in the numerator can result in a large percentage change.
This sensitivity makes percentages calculated from small divisors particularly volatile and can lead to misleading conclusions if not interpreted carefully. For instance, if a company had 2 customers last year and gained 2 more this year, that's a 100% increase, which sounds immense, but the actual change in customer base is quite small.