Begin by quantifying accomplishments through predefined methods at a preset time. Internally review the project and identify detailed elements that have been completed. A common formula for defining the Earned Value (EV) is calculated as the percent complete times budget at completion.
EV = % complete * BAC
Compare the Planned Value (PV) to the EV on a chart for a quick snapshot on the progress of the project. The PV is your baseline and variances from that figure will be instantly noticeable. Add in the Actual Cost (AC) at specific time intervals and your graph now encapsulates the planned versus actual project flow.
Setting this up prior to the beginning of a project gives you an additional tool to track progress and compare preset conditions to actual results.