Background: Determining an effective selling price is crucial for corporate profitability and market competitiveness. Cost-Plus Pricing is widely used due to its simplicity, yet its practical capability to yield optimal financial performance remains debated. Research Gap: Prior literature shows contradictory evidence on Cost-Plus Pricing—some studies indicate it underestimates market rates, while others show overestimation—creating uncertainty about its effectiveness in sustaining competitive pricing and optimal gross margins. Objective: This study analyzes the implementation of Cost-Plus Pricing at PT. Bogor Persada Indonesia and evaluates its effectiveness in generating competitive selling prices while sustaining gross margins. Method & Data: Using a qualitative descriptive design, primary qualitative and quantitative data (2021–2023) were collected via online interviews and financial documentation. The primary product sample evaluated was the Heavy Duty (HD) Cover U-Ditch measuring 30 × 60 cm. Analytical Technique: Data were analyzed using the single-department process costing method and Gross Profit Margin (GPM) financial ratio analysis. Findings: Applying Cost-Plus Pricing with a 50% markup yielded a price of Rp 62,409, which is considerably below the company's price list (Rp 114,254) and market rate (Rp 109,500). Consequently, the firm adopts a hybrid strategy using Cost-Plus Pricing as an internal negotiation floor and market-based pricing for its official price list. This dual strategy sustained an average GPM of 58% (2021–2023), significantly outperforming the 30% industry benchmark. Implications: Practically, manufacturing firms should not rely on Cost-Plus Pricing in isolation; integrating cost floor boundaries with market-oriented pricing is vital to balance market competitiveness and long-term profitability.