Target costing is a process used early in new product development that focuses on reducing costs. It involves four key steps: 1) planning and market analysis to determine a target selling price, 2) concept development, 3) production design and value engineering to estimate actual costs, 4) continuous improvement to reduce costs if actual costs exceed the target. The target cost is calculated by deducting the target profit margin from the target selling price. If estimated actual costs are higher than the target cost, ways to reduce costs are investigated.