Which of the following is a way to present a percentage problem?

Identifying a percentage problem involves understanding the relationship between part and whole. The correct way to present a percentage problem is by finding what percentage of a number another number is. This task explicitly requires calculating a percentage, where you take a specific number (the part) and relate it to a total (the whole) to determine how much of the total it represents in percentage form.

For instance, if you want to know what percentage 25 is of 200, you'd set up the problem to find the ratio of 25 to 200 and then convert that ratio to a percentage. This directly corresponds to the fundamental concept of percentages that focuses on expressing one quantity as a portion of another.

The other options involve mathematical operations that do not necessarily pertain to percentage calculations. Finding an average pertains to a mean value calculation, while determining the total of a series of numbers relates to addition, both of which do not inherently involve percentages. Thus, focusing on what percentage of one number another number represents is the fundamental aspect of percentage problems.