Answer:
The selling group member earns $12 on that sale
Step-by-step explanation:
When selling a bond directly to the public, a group member earns a total takedown which is the total of the additional takedown plus the selling concession.
$12 + $15
= $27
Now if a selling group member finds a customer, then $15 which is the selling concession is given up leaving the member to earn $12 (the additional takedown) on that sale.