What is Average Cost on Yoroi?

I am new to ADA staking, while browsing Pool I noticed the column mentioning “Average Cost” when I hovered over it it shows “Real average fees”. This column remains obscure, what does it mean and how should I interpret it when choosing a staking Pool.

Thank you,

In theory it tells you the average cost of the pool, but actually is not very helpful. The ROA is more helpful. If you need help choosing a pool, take a look at the guide I’ve made on my pool site [IPIB]