Describe the equation you use to find the unknown part of in a percent.

The correct answer is: Percent × Whole = Part

Step 1 of 2:
Primarily, let us understand that anything as a whole is considered as 100%. Now, if we want some part of it, then we take some percentage from it.
Step 2 of 2:
Let us consider the following example.
Suppose Mr. A's income is Rs. 10000 per month. He spent 30% of his income on food. How much does he spend on food?
Well, if Mr. A's income is 10000 then we consider that as 100%.
Now, we spends 30% of his income on food. Therefore, by simple arithmetic, we calculate 30% (percent) of 10000 (whole) is Rs. = Rs. 3000 (part).
Hence, the formula is defined by, wholepercent = part.
Final Answer:
The correct choice is-- A. Percent × Whole = Part