Refer to Figure 3.2 as follows:
Figure 3.2: Hedera Hashgraph Gossip about Gossip
This new form of consensus model eventually became so popular
that many later public Blockchain platforms used it in one way or
the other, and also with more variations. Even the CEO of Hedera
Hashgraph accused the Facebook Libra currency to copy some of
the ideas of Hashgraph for consensus.
3.2 Transaction fees
Just like Ethereum, Hedera too has its native, energy-efficient token
called HBAR. The average fees of the transactions on Hedera
Hashgraph are around $0.0001, however a detailed chart can be
found
on
the
following
Hedera’s
website:
https://docs.hedera.com/guides/mainnet/fees#transaction-and-query-
fees