I saw a post on a local FB group page that someone was looking for a person to make this afghan for them and wanted to know how much it might be.

So I decided to figure it out

For someone to receive what they deserve for making an afghan like this, the cost would probably be prohibitive for most people.  Materials would probably be at least $50, depending on the yarn...not too bad for an afghan.  One this size would take a lot of yarn.

The stars would take about 15 min. each.  50 stars x 15 min  = 12.5 hours
6 rows per stripe x 13 = 78 rows.  Each row could easily take 20 minutes--78 x 20
= 26 hours.
By the time you add on time for assembling and weaving in ends, it would be close to 40 hours.
$15/hr is on the low side for skilled labor. So, 40 x $15 = $600 + the cost of materials.

I would consider making one for that amount.

People who don't crochet or knit or make quilts,  etc., have no idea the "true" worth of hand-crafted items.

So, unless you have tons of money or are willing to only pay someone sweatshop wages, it would be much better to take a class or ask someone you know to teach you how to do the craft yourself. 

Just sayin'