PKG Ltd. maintains a minimum cash balance of Sh.500,000. The deviation of the company's daily cash changes is Sh. 2002,000. The annual interest rate is 14%. The transaction cost of buying or selling securities is Sh. 150 per transaction. Required: a) Using the Miller-Orr cash management model, determine the following: (i) Upper cash limit (ii) Average cash balance b) The return points. c) Explain briefly the meaning of the terms: (i) Overtrading (ii) Overcapitalization