Answer:
GHC 600
Explanation:
We have

Total Sales: The total amount of sales made by the shopkeeper.
In this case, it is GHC 6,000.
Commission Percentage: The percentage of the total sales that the shopkeeper receives as commission.
In this case, it is 10%.
Plugging in the values, we get the following:

= GHC 600
Therefore, the shopkeeper's commission is GHC 600.