Which is the least preferred method for calculating the equitable adjustment?

The least preferred method for calculating equitable adjustments is often considered to be the "total cost method." This approach calculates the adjustment based on the total cost of the project, subtracting the original contract price, which can be problematic. It may not accurately reflect the actual costs incurred due to issues like inefficiencies or unallowable expenses, leading to disputes. Additionally, it lacks detailed analysis of specific changes or impacts on the project.