The Cogs progress percentage for each participant is calculated based on their progress in the associated Cog bundle. The Cogs completion percentage is an average for all Cogs in a bundle.
For example, if you have completed 1 out of 4 Cogs in a bundle, your Cogs progress percentage will be 25%. If you have completed 2 out of 4 Cogs in a bundle, your Cogs progress percentage will be 50% and so on.
Note: a progress percentage of 80% or more is seen as "good enough". The trainer may go ahead with the workshop if users have completed 80% or more of the bundle.