Answer:
$ 40
Step-by-step explanation:
Given :
Bid price = $ 50
Ask price = $ 50.2
Ideal price =


= $ 50.1
This is the ideal price of the stock that is based on the mid point price.
The transactional cost for the buy is = Ask price - ideal price
= 50.2 - 50.1
= $ 0.1
Thus we have to give $ 0.1 as the transactional cost if we want tot buy the stock immediately, so that we buy it more than the ideal price.
Therefore, the transactional cost for the sales is = ideal cost - bid cost
= $ 50.1 - $ 50
= $ 0.1
Thus we have to pay $ 0.1 as the transactional cost if we want to sell the stock now, so as to sell it cheaper than the ideal price.
We known the quantity = 200
So the round up transactional cost =

= 200 x (0.1 +0.1)
= $ 40