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Decreased Percent Complete

Maintaining accurate progress tracking is vital for transparent, efficient, and successful project management. If there is a valid reason to change the percent complete for an activity, it should be well-documented, explained to stakeholders, and based on reliable evidence or data. Changes to percent complete should reflect real progress and not be manipulated for convenience or to mask issues. This approach helps ensure that the project schedule remains a reliable and trustworthy tool for effective project management.


  • Inaccurate Progress Reporting: Decreasing the percent complete of an activity implies that the task has regressed or made less progress than previously reported. This can lead to inaccurate progress reporting, making it difficult to assess the project's true status and make informed decisions.
  • Misrepresentation of Project Progress: Updating an activity to show less progress than originally reported can misrepresent the overall progress of the project. It can create a false impression of setbacks or delays that may not accurately reflect the project's actual performance.
  • Reduced Transparency: The reliability of project reporting and communication with stakeholders is critical for effective project management. Decreasing the percent complete without a valid reason can reduce transparency, leading to a lack of trust and credibility among team members and project stakeholders.
  • Risk of Underestimating Delays: By decreasing the percent complete, it may become challenging to identify and address issues and delays promptly. This can result in underestimating the impact of potential problems, which could lead to more significant schedule slippage.
  • Inefficient Resource Allocation: If the percent complete is adjusted downward without a valid reason, resources may be allocated inefficiently. This can lead to resource overallocation or delays in other project activities that rely on the completion of the task in question.
  • Reduced Accountability: Decreasing the percent complete can reduce accountability within the project team. Team members may become less committed to completing tasks on schedule if they perceive that progress reporting is inconsistent or inaccurate.
  • Trust and Stakeholder Relations: Inaccurate or inconsistent progress reporting can erode trust and create friction with project stakeholders. It may affect relationships with clients, team members, and other parties involved in the project.