A portfolio manager at Stratton Advisors decides to buy 80,000 shares of Quinlan Industries at Monday's opening price of $55.00. The order is transmitted to the trading desk Monday afternoon when Quinlan is at $55.80. On Tuesday, 50,000 shares are executed at an average price of $56.40. The remaining 30,000 shares are cancelled on Wednesday when Quinlan closes at $57.60. Commission is $0.04 per share. What is the total implementation shortfall as a percentage of the paper portfolio value?