During the active execution phase of large-scale corporate projects, traditional budget tracking—which merely compares actual money spent against the initial baseline budget—is structurally inadequate. A project team can be perfectly on-budget simply because they have delayed work and failed to pay suppliers, masking severe project delays. To measure cost and schedule performance accurately, internal auditors deploy Earned Value Management (EVM) metrics. EVM combines physical work progress with financial records, providing a scientifically valid method to track project health.

Internal auditors extract live data from project management systems to compute four core EVM variables and performance indicators using plain-text, Word-safe display syntax:

CV = EV - AC

Where: CV = Cost Variance, EV = Earned Value, and AC = Actual Cost.

SV = EV - PV

Where: SV = Schedule Variance and PV = Planned Value.

CPI = EV / AC

Where: CPI = Cost Performance Index ratio.

SPI = EV / PV

Where: SPI = Schedule Performance Index ratio.

If CPI < 1.0 Or SPI < 1.0 ---> Project is Over Budget or Experiencing Schedule Slippage
If CPI > 1.0 And SPI > 1.0 ---> Project is Under Budget and Ahead of Schedule

Internal audit policies establish strict corporate performance thresholds linked directly to EVM indicators. If a major strategic project’s CPI or SPI drops below a defined limit (e.g., falling below 0.85), the GRC tracking system triggers an automated Remediation Mandate. The project owner must immediately freeze non-essential sub-contracts, present a detailed root-cause recovery plan to the executive steering committee, and undergo weekly internal audit reviews until the indicators return to safe tracking zones.