Answer:
See Explanation
Step-by-step explanation:
The question is incomplete; However, one can deduce from the options that the question refers to percentage change.
I will give two illustrations that shows how to calculate percentage change.
<u>Illustration 1</u>
Consider goods x with the following price change.
The percentage change is:
<em>This means there is a 22.22% increase</em>
<u>Illustration 2</u>
Consider goods x with the following price change.
The percentage change is:
The negative sign indicates percentage decrease
<em>So, this means there is a 22.22% decrease</em>