SJ Contractor Markup Calculator (Mini-App) is an analytics dashboard product available on the Whop marketplace, created by gamecockslife and launched in March 2026.

This tool is built for contractors, estimators, and small construction business owners who struggle to price jobs correctly and consistently. Instead of guessing markup or underpricing projects, this calculator gives you a fast, reliable way to determine the right selling price based on your costs and desired margins. The result is clearer pricing, better profit control, and more confident bids. It’s extremely simple to use—just open the lightweight HTML file, enter your numbers, and get instant results with no installs or setup required. Unlike bulky software that can take up 10–60MB of storage, this tool runs in a compact file typically under 150KB, giving you full functionality without eating up device memory. Whether you’re on-site or at your desk, you can quickly dial in pricing decisions and avoid costly mistakes. It fits seamlessly into your workflow and removes the guesswork from markup calculations.

SJ Contractor Markup Calculator (Mini-App) has is priced at $12.99 (one-time payment).

SJ Contractor Markup Calculator (Mini-App) offers a 20% affiliate commission for promoters. Track SJ Contractor Markup Calculator (Mini-App)'s estimated revenue, member growth trends, and competitive market position on Whop Trends.