Essence conversion rates?

Hey all! I’ve done quite a bit of boss runs since launch. However for some reason,

Baal does not like to drop his essence when I run solo.

Would you guys be able to share the general trade rates for how many blues, reds, yellows it takes to trade for 1 green? TIA!

It’s really random. I’ve traded a green essence for 4yellow+4blues before. Other times I’ve traded 1green for 2blues and 2yellows. I guess it’s all supply and demand.

From what I’ve gathered, a green essence is slightly less than a token because almost everyone has yellow blue and red. If you look at the trades, you hardly see people wanting blue or yellow.