Belt.fi has automatic buyback BELT token burns at a rate of 50% of trading fees. 8% of yield is used to buyback BELT and burned.
$BELT buyback & burning is an automated system based off of yield from beltStrategy contracts ("earn") and trading fees ("swap volume") from Belt Finance's stableswap AMM.
Yield Buyback
From the earned yield, 8% is used for BELT buyback and burn.
This is calculated as:
earn * 0.08 = belt buyback amount
This is done for each earn() transaction for each beltStrategy contract. This happens every 6 hours.
You can see an example transaction here: https://bscscan.com/tx/0x6e8389aef0451c2c3907930f591ab6c586debb5e4a46f17ac7dd9a457384b8d3
Trading fee Buyback
50% of trading fees from swap volume are used to buyback and burn BELT.
This is calculated as:
swap volume transaction fee * 0.5 = BELT buyback amount
The buyback() is executed one time a day from the accumulated amount in the swap contract: