Pending % Complete field
The estimate of the percentage of the resource's units of work completed on this activity.
The pending percent complete is entered by each resource using timesheets. This value is used to compute the resource's remaining units for the activity when project actuals are applied. The project manager specifies whether resources update their percent complete or remaining units for each project.
Units % Complete field
The percent complete of units for the resource assignment on the activity.
The percent complete is always in the range 0 to 100.
Calculated as Actual Units divided by At Completion Units multiplied by 100.