Final answer:
A change of one response per 10 opportunities represents a 10% change in the calculated percentage.
Step-by-step explanation:
For example, a change in the count of just one response per 10 opportunities changes the percentage by 10%. If we started with a baseline where there are no occurrences (0%), adding one occurrence would move it to 10% (as 1 out of 10 is 10%). Similarly, if there were 9 occurrences (90%) and one was removed, this would result in 80%. Therefore, each individual occurrence or response in a set of 10 opportunities equates to a 10% change.