Let's suppose that it is your domain and you handreg it for $5.99 (Dyna promo), now you should pay $8.50 to renew it - $14.49 total. I offer you to pay $12, so renewal cost for the domain is $6, it's just math.
By the way, this domain:
- was previously sold for $1288 (according to GD appraisal system);
- is taken in 4 other extentions (according to Dofo);
- more than 90 domains are registered with the keywords "design" and "laboratory"