:confused:You have invested in stock for 1 year. If you start with $100 worth, a 10% increase in value will cause it to be worth how much? If your stock grows to $75, at a rate of 5%/yr how much did you start with? If you start with $100 of stock and then it grows to $120, what was the growth rate? If you start with $80 of stock and it decreases to $60, what was the (negative) growth rate?

This is all simple math. What are you confused about?

They just want to know how to do the problem

abby_jsn : They just want to know how to do the problem

No, they wanted the work done for them.