The number of unqualified persons before training is 208/(208+102+10) ×100% = 65%.

After training, the unqualified population accounts for 64/(64+186+70) ×100% = 20% of the total population.

The qualified rate after training is:186/(64+186+70) x100% ≈ 58.13%.

The number of excellent people after training is the number of excellent people before training: 70/ 10=7.