1. First, deduct the rest days and holidays in a year to get the actual working days. Then multiply the number of people who need training by the number of days in each training cycle, which is the total training days.

2. Then subtract the total training days from the existing training plan (if 10 days of training has been arranged, the actual commitment is the total training days minus 10 days).

3. Finally, subtract the applied vacation days and other unavailable days from the actual commitment, which is the remaining available training days, that is, the spare days.