What is Cost Sensitivity Analysis?
Cost sensitivity analysis is a technique that measures how a project’s or product’s profitability responds to changes in cost inputs — raw material price, labor rate, energy cost, exchange rate. It identifies the cost drivers that matter most and the breakeven point for each.
How It Works
- Vary one input at a time while holding others constant (“ceteris paribus”)
- Plot the impact on NPV, IRR, or margin
- Identify the most sensitive inputs — that is where risk-management effort goes
- Often combined with scenario analysis for combined-shock effects
- Standard tool in feasibility studies for industrial projects, infrastructure, real estate
Saudi Context
For Saudi project finance — Vision 2030 industrial projects, PIF investments, PPP deals — sensitivity analysis on energy prices, USD/SAR is a peg so FX risk is low, and labor cost is fundamental to investment-committee approvals.
Example
A Saudi cement project shows that a 10% rise in fuel cost cuts IRR from 14% to 11%, while a 10% rise in labor cost cuts IRR only to 13.6%. The sensitivity confirms that the project’s most important hedge target is energy cost — the team negotiates a long-term fuel supply agreement before financial close.