13 - GENERAL FACTORS REVIEW OBJECTIVE Carefully review the general cost factors defined in the Factors & Data sheet. These factors affect the indirect and final components of the estimate and can significantly change the Grand Total. The objective of this phase is to confirm that every factor reflects the commercial, contractual, tax, insurance, and project-specific conditions applicable to the estimate. FACTORS TO REVIEW Depending on the project, review factors such as: • Direct Labor Burden. • Contingency. • Administration. • VAT. • Government Taxes. • Municipal Taxes. • Insurance. • Medical Expenses. • Profit. Other indirect or project-specific factors may also apply depending on the estimating requirements. DIRECT LABOR BURDEN Direct Labor Burden represents additional costs associated with direct labor. Depending on the estimating method, it may include labor-related obligations, allowances, payroll burdens, or other labor components not already included in the direct labor rate. Verify that the percentage being used corresponds to the intended estimating basis. CONTINGENCY Contingency is intended to cover reasonable uncertainty within the estimate. It may reflect: • Incomplete design information. • Quantity uncertainty. • Execution complexity. • Possible minor scope variations. • Market uncertainty. • Project-specific risk. Contingency should not be used as a substitute for missing technical analysis. ADMINISTRATION Administration represents the indirect cost required to manage and support the project. It may include: • Project management. • Administrative personnel. • Office support. • Communications. • Document control. • General project coordination. • Other indirect overhead costs. The percentage should be consistent with the expected project organization and duration. VAT Verify the Value Added Tax percentage applicable to the estimate. Confirm whether VAT should be applied to the calculated subtotal according to the commercial and contractual conditions of the project. GOVERNMENT TAXES Review any national or government taxes applicable to the estimate. These values should reflect the current contractual and legal assumptions being used for the project. MUNICIPAL TAXES Municipal or local taxes may apply depending on the project location. Confirm whether the project is subject to local taxation and whether the correct percentage has been entered. INSURANCE Insurance factors may represent project-related insurance costs such as: • General liability. • Workers' compensation. • Builder's risk. • Equipment insurance. • Contract-required coverage. • Other project-specific insurance requirements. Confirm that the factor is consistent with the contractual requirements. MEDICAL EXPENSES If Medical Expenses are included as a separate factor, verify that the percentage corresponds to the intended labor-related calculation basis. In ZUCOST, this component may be calculated directly from Labor rather than from the complete project subtotal. PROFIT Profit represents the commercial margin applied to the estimate. Review the percentage according to: • Company strategy. • Market conditions. • Project risk. • Competition. • Contract type. • Commercial objectives. Profit should be reviewed after the technical and indirect cost structure is reasonably complete. WHY THIS IS IMPORTANT General factors may appear small individually, but together they can produce a significant impact on the final estimate. An incorrect percentage can affect: • Grand Total. • Unit Cost. • Commercial competitiveness. • Profitability. • Contract pricing. • Final reports. VERIFY THE CALCULATION BASIS Do not review only the percentage. Also verify what each factor is applied to. Different factors may use different calculation bases. For example: • Some factors may be applied to Subtotal. • Some labor-related factors may be applied only to Labor. • Profit may be calculated after other indirect components. Understanding the calculation basis is as important as verifying the percentage itself. RECALCULATE AFTER CHANGES After modifying any general factor, run the complete ZUCOST calculation again. Use: F5 - CALCULATE ESTIMATE AND BASE Then review the resulting values in Base and in the corresponding reports. IMPORTANT Do not leave general factors at default values without confirming that they apply to the current project. Every estimate may have different: • Tax conditions. • Insurance requirements. • Administrative structure. • Risk profile. • Labor obligations. • Profit objectives. RECOMMENDATION Review all General Factors only after the direct resource structure, quantities, and productivity values are reasonably complete. Confirm both the percentage and the calculation basis. Then run a complete recalculation and verify the final impact before proceeding to sensitivity analysis and final reporting.