PMP Exam Math: Earned Value, PERT, Critical Path & Formulas

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Turn percent complete into earned value for six work packages, then calculate the schedule variance and the cost and schedule indices the way the exam asks for them.
• Calculate the four estimate-at-completion formulas the exam uses, the variance at completion and the to-complete performance index, and learn which formula fits which story.
• Turn monthly values into cumulative curves, track CPI and SPI to date month by month and draw the classic EVM S-curve chart.
• Estimate six activities with the beta (PERT) and triangular formulas, find each one's standard deviation, combine them along the path and use NORM.DIST for the probability of meeting a deadline.
• Finish the forward pass where two paths merge, the backward pass where one activity feeds two, and calculate total and free float the way exam network questions ask.
• Calculate how many days each activity can be crashed and what one day costs, then pick the cheapest critical activity with MINIFS and INDEX/MATCH.
• Count communication channels before and after a team grows, then price an incentive contract with a share ratio and a ceiling, and find the point of total assumption.
• Quantify six risks with expected monetary value, size the contingency reserve from the net EMV and roll back a two-option decision tree to pick the better choice.