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. 2017 Mar 1;19(3):e58. doi: 10.2196/jmir.6716

Table 3.

Costs and number of participants tracked by Uniform Resource Locator codes in advertisements on Facebook.

Target area Time Impressionsa
n		 Clicksb
n
Click-through ratec
%		 Participants
n		 Conversion rated
%		 Average costs per participant
€
Nationwide March 30 to April 7,
2010		 409,129 696 0.17 84 12.07 1.32
Nationwide June 29 to July 7,
2010		 250,324 587 0.23 60 10.22 1.85
Nationwide November 25 to
December 2, 2010		 271,176 403 0.15 42 10.42 2.64
Nationwide September 22-29,
2011		 247,412 324 0.13 22 6.79 5.04
Aalborg October 9-16,
2011		 84,565 39 0.05 1 2.56 21.94
Nationwide May 3-12,
2012		 79,624 157 0.20 6 3.82 16.65
Nationwide October 31 to
November 9, 2013		 23,423 344 1.47 11 3.20 12.53
Nationwide December 21-28,
2013		 16,776 311 1.85 5 1.61 22.18
Nationwide,
in total
1,297,864 2822 0.22 230 8.15 3.44

aThe number of times an advertisement was shown.

bThe number of people who clicked on the advertisement.

cThe proportion of people who saw the advertisement and clicked on it.

dThe proportion of people who clicked on the advertisement and were enrolled.