ROI
ROI refers to the profitability of an advertisement copy found under a keyword.
It is an extrapolation computed by KeywordSpy to gauge how effective a “keyword & ad copy combination”, based on the frequency of appearance of an ad in search engine listing.
A profitable ad copy with high ROI is represented by a bar with green highlight. The unprofitable one is represented by the ROI bar with gray highlight.
ROI is computed as follows:
ROI = (Days Seen * Percentage Seen) /
Number of Days Seen since Last Seen
Example:
An ad copy for the keyword “Send Flowers...” was seen 15 days out of 20; the ad copy was seen 2 days ago
Number of Days Seen: 15
Percentage Seen: 15/20= 75%
Number of Days since Last Seen: 2 Days
ROI = (15*75%)/2 = 5.6