BNB tokens are burned in “real time,” meaning all the time. A certain portion of transaction fees is burned whenever a block is validated. At the time of writing, the total burned in this way was just over 76,600 BNB. However, most BNB burning is done on a regular quarterly basis, with the amount calculated according to a formula based on the BNB price and the total number of blocks so far validated in the chain. In the first quarterly burn of 2022, more than 1.8 million BNB were burned.