Question 5 (SELF-PRACTICE QUESTION) E-Trader sells V-phone to retail shops on credit term. These retail shops informed E-Trader that they will buy 20% more V-phone if their credit term is extended from 9 days to 30 days. E-Trader provides the following data: Required: Use marginal analysis to make a recommendation to E-Trader whether the credit term should be extended from 9 days to 30 days. Show all workings to the nearest thousand dollars