Although 200 million BNB were initially offered in 2017, the coin in circulation today is significantly less. Originally, in their whitepaper, Binance committed itself to using 20 percent of its profits to repurchase BNB and permanently destroy them by burning them. However, this was changed to now be based on the volume of trading down in the last quarter. Binance has done about 16 of these burns with its last quarterly burn taking place in July 2021. They destroyed 1,296,728 BNB.