I will likely repeat some of what was already said, but here are my comments:
1. container needs to have drainage hole
2. layer of pebbles at the bottom doesn't help (if, only temporary and not enough). Best to be avoided.
3. good idea mixing purchased soil with perlite (or pumice, or gravel or few other, inorganic ingredients) - looking at the photo, it looks too 'fine' = often water retaining. Pls. note that I am only judging what I see in photo, and not being able to see it directly.
4. it is usually best to get rid of all old soil from the rootball. even washing it if difficult to remove. Spraying with garden hose helps :) Any damaged rots should be cut off. After, let roots dry up on something absorbent, in shade rather than sun. Good air circulation will speed it up. Few hrs to overnight is usually enough.
5. It could have been potted in smaller pot, but it should be ok since pot is not too deep. Big pot = lots of soil, and it may take longer time to dry up.
6. Do not put new succulents into full sun - unless you know for sure hey have been in sunny position before. Always acclimatize them.
7. Water when potting mix is almost completely dry: get a bamboo skewer/chopstick or even pencil. Insert deep into pot (at least 3/4 deep). Leave for few min; if clean and dry when pulled out -time to water. Watering depends on the temps - mix will dry up faster in hot weather; amount of potting mix and even pot - glazed pots take longer.
8. Some reddish color on leaves comes with good sun, and is desired by many of us. Just remember to acclimatize it in order not to burn it.
Jades are very easy plants to grow. As with all succulents, give them great drainage and light and they will be happy. Do not expect overnight change - it will take a bit for plant to recuperate from repotting and it also depends on your growing conditions. And above all - enjoy it, do not worry about 'testing' it every day.
Any further questions, just ask...:)
PS: you will likely get best suggestions on Cacti and Succulents forum - growing other plants in garden is quite different than growing succulents in the containers...
Q