Episode 8: Cost Per Conversion or Return On Investment?

Many people who are trying to analyze their first AdWords accounts become confused about which way they should measure their account level so that they can make adjustments at the keyword level. There are basically two choices; cost per conversion and return on ad spend. Understanding the difference in the two will allow you to understand which the best choice is for you. Remember, however, that they are not inclusive, so you should look at the other indicator at times.....

Source:  http://ppcadsthatsell.com/cost-per-conversion-return-investment/

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