Key Methods
NPV: PV of cash flows minus investment. Positive = accept. IRR: rate that makes NPV zero. If IRR > cost of capital, accept. Payback: time to recover investment. Ignores time value of money.
NPV vs. IRR Conflicts
For mutually exclusive projects, always use NPV when NPV and IRR conflict. NPV directly measures value creation.
Sensitivity & Scenario Analysis
Sensitivity: change one variable at a time. Scenario: change multiple variables (base/best/worst case). Both help understand risk and key value drivers.