Every day BST will be burned to reduce the total supply.
The total calculation formula that is burned is based on the daily volume of the bitsten exchange.
An example of a calculation is
Daily Volume : (BTC+ETH+USDT+IDRT) = 5,000,000,000 IDRT
BST Price : 60 IDRT
Exchange fee : 0.02%
Result : (5,000,000,000 * 0.02% * 50%) / 60 = 8,333 BST
With the example data above, every day it will burn around 8,333 BST
View history : https://bitsten.com/bst-burn-history