... 3, 4, and 5, where each Ztis drawn from a 116 FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL FIGURE 7 .11 Spider chart.analysis of the relationships between the randomly generated inputs and ... (negative cash flow) 112 FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL FIGURE 7.6 ScooterNPV.xls spreadsheet model.In the next section, we use this model to demonstrate the use of Crystal Ball sTornado ... Forecast for ScooterSimulation.xls. 118 FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL between e1,t and e2,tis 0.8, while the correlation between e1,t and e4,tis −0.8.However, the errors...