Question $3$:

Using this information, how would you calculate the ROI for the search ad campaign? What do you believe the actual amount of incremental traffic due to sponsored ads?

You calculate ROI by doing $($Gain from Investment$-$Cost of Investment$/$Cost of Investment$)$x$100.$

Question $4$: What do you think the ROI for the campaign is given your analysis?

First, calculate the return from running the campaign

Calculate the average weekly incremental traffic attributable to sponsored ads $($the number above$)$ and multiply that by the average total weekly traffic from Google for Weeks $1-9.$

$-5\mathrm{.}18--3\mathrm{.}55=-1\mathrm{.}62\%$

$0\mathrm{.}162156585=2537$

Take that number and multiply by the average revenue per click

$25372\mathrm{.}52=$$$6393$

Now, calculate the cost of the campaign

What is the average number of sponsored clicks from Google during Weeks $1-9.31390$

$132269$

$+31951,+32143+31417,+31194,+31576,+30951$

$+30611+30401$

Take this number and multiply by the cost of each click.

$313900\mathrm{.}60=18834$

Calculate ROI

return from the campaign $-$ cost of the campaign