The cost of my shirt is $15.44 , I am offering FREE SHIPPING $3.99
**I did what the article said…Take the–> COST x 50% …**and got a low gross margin %33.33 
that def would it my prof.
on the second screenshot. i left the cost as is..and mark up 25.94% on top of the 50% for a total of 75.94
the 25.94 % is equal to the amount of the shipping 3.99
is this correct? is this a good-fair sales price?