I have gigs about drawing, If a basic gig costs $5 (draw from head to shoulder) and people order an extra gig costs $5 ( extra fast delivery ). So the total is $10. I understand
But if a basic gig costs $5 (draw from head to shoulder) and people order an extra gig costs $10 ( draw half body). So what is the total? $10 or $15 ??.
Waiting for helps.
An extra is always something separated from the basic 5$ gig. So no matter what you’re offering(because I think your confusion started from the head/body drawing) in an extra, that will add to the basic 5$.
So if besides the basic gig someone decides to purchase the half body extra(which costs 10, I understand), the total is 15$.
I hope this helped.