PMBOK® 8th Edition Interactive Calculation Suite

Reserve, Schedule & Resource Calculators

Simulate known-unknown contingency reserves vs management reserves (Page 192), evaluate Earned Value metrics (SPI/CPI), and analyze resource leveling schedule extensions.

1. Base Project Scope EstimateExcludes all reserves

Direct Project Cost Estimate ($):

2. Identified Known-Unknown Risks (Contingency Reserve)

EMV Method

Weather Ground Delay

Prob: 30% × Impact: $25,000

+$7,500

API Integration Rework

Prob: 40% × Impact: $15,000

+$6,000

Vendor Delivery Slip

Prob: 20% × Impact: $30,000

+$6,000

Add New Identified Risk:

3. Unknown-Unknown Reserve (Management Reserve %)

Requires CCB Approval

Budget Reserve Stack Analysis

Direct Scope Estimate:$500,000

+ Contingency Reserve (Known-Unknowns):$19,500

= COST BASELINE (PM Controlled):$519,500

+ Management Reserve (5% Unknown-Unknowns):$25,975

TOTAL PROJECT BUDGET:$545,475

PMBOK Page 192 Key Exam Distinction:

Earned Value performance metrics (EV, PV, AC) are measured strictly against the Cost Baseline ($519,500), NOT the total project budget!