Ill answer you anyways.
IGB 50-150k each depending on the type of flowers. Gold, blue roses and carnations usually go for 100-150k. Some people sell more common hybrids for lower though at around 30k
TBT anywhere from 3-5 per flower from what ive seen so far but i dont really trade tbt so not 100% sure
There are some odd cases where people will offer way below or above the standard like 3000 per hybrid up to 200k-500k per hybrid (extremely rare case 1mill)
If you are selling and someone offers you below 50k tell them you are not interested in selling to them unless they are willing to match the price market of this forum.
I hope this helps, i used to breed and sell hybrids but stopped since its a pain and i dont have enough time for it.