Cash Flow

A contractor estimate the cost of a project to be $7.98 million dollars. He submits a bid for $8.4 million (7.98/0.95 rightarrow cost + 5% markup.) The bid is accepted. Progress payments will be made every two weeks, there is a two weeks delay in processing the payment, the retainage is 10%, and the project duration is 9 months (36 weeks.) The retainage will be paid with the last payment. Draw the cost and received payments curves, and determine the maximum negative cash flow