Vendor Performance Scorecard & Weighted Supplier Evaluation Calculator

Strategic Procurement: The Weighted Point Plan (WPP) Vendor Scorecard

A structured Supplier Relationship Management (SRM) scorecard replaces subjective opinions with objective, standardized performance metrics:

• The 5 Core Supplier Pillars:

• Quality (30%): Parts Per Million (PPM) defect rate, RMA return rate, and packaging integrity.

• Delivery / OTIF (25%): On-Time In-Full percentage against confirmed purchase order promise dates.

• Cost & Commercial Terms (20%): Price competitiveness against market indices, payment terms (e.g. Net 60), and freight allowances.

• Customer Service (15%): Responsiveness to inquiries, engineering change turnaround speed, and flexibility.

• Compliance & ESG (10%): ISO 9001/14001 audits, regulatory compliance, and labor/environmental ethics.

• Quarterly Business Reviews (QBRs): Sharing scorecard data with suppliers drives mutual continuous improvement and provides legal justification for contract extensions or supplier disqualifications.

How to Use This Calculator

Enter your

• Quality & Defect-Free Score (0 to 100) (e.g. 92 (Defect rate, reject ppm, RMA frequency)), Quality Category Weight (%) (e.g. 30),

• On-Time In-Full (OTIF) Delivery Score (0 to 100) (e.g. 88 (Schedule compliance, lead time reliability)), Delivery Category Weight (%) (e.g. 25),

• Price Competitiveness & Terms Score (0 to 100) (e.g. 85 (Price stability, payment terms, discounts)), Cost Category Weight (%) (e.g. 20),

• Customer Service & Tech Support Score (0 to 100) (e.g. 90 (Communication, flexibility, engineering support)), Service Category Weight (%) (e.g. 15),

• Compliance, ESG & Security Score (0 to 100) (e.g. 95 (ISO certification, audit pass rate, sustainability)), and Compliance Category Weight (%) (e.g. 10). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Weighted Point Plan (WPP) Supplier Scorecard equations:

Normalized Category Weight: w_i = (W_i) / (Σ_j=1)^k W_j

Total Weighted Vendor Score = Σ_i=1^k (w_i × S_i) = (w_Q · S_Q) + (w_D · S_D) + (w_C · S_C) + (w_S · S_S) + (w_E · S_E)

Supplier Tiers: cases Tier 1 (Preferred) & 90 \\ Tier 2 (Approved) & 80 - 89 \\ Tier 3 (Conditional / SCAR) & 70 - 79 \\ Tier 4 (Disqualify) & < 70 cases

Worked Example

For example, evaluating a key packaging supplier with Quality score 92 (30% weight), On-Time In-Full delivery 88 (25% weight), Cost competitiveness 85 (20% weight), Service responsiveness 90 (15% weight), and ESG compliance 95 (10% weight): Weighted point contributions are 0.30(92) = 27.6, 0.25(88) = 22.0, 0.20(85) = 17.0, 0.15(90) = 13.5, and 0.10(95) = 9.

• Total Composite Score is classifying the vendor as Tier 2 Approved (bordering Tier 1 Preferred).

Understanding Your Result

Evaluate your result in the context of your specific use case and relevant industry standards or reference values. A single calculated result is a starting point — test two to three scenarios to understand how sensitive the outcome is to your key input assumptions. For high-stakes decisions, verify your result against a secondary source or subject-matter expert before acting.