The 'Total Contracted Hours' should be the total hours per week.
Formula for calculating the Off-the-job %
(Actual Off-the-job Hours ÷ Planned OTJ (Hrs)) x 100
The Planned OTJ % will show what percentage of the total contracted hours have been logged as off-the-job.
The OTJ % should reach 100% once they have completed all of the planned OTJ hours.