Design an incentive-based revenue-sharing model for a joint venture between [Company A] and [Company B] focused on achieving specific performance milestones. Define clear milestones, such as reaching sales targets or obtaining regulatory approvals, and determine how these achievements will trigger increased revenue shares for the partners. Establish the percentage increase for each milestone and the corresponding criteria for measuring success. Specify how revenue will be tracked and reported to ensure transparency and fairness throughout the process.