So a base prize of 2 satoshi happens when the BTC price is at $100k.
Any amount between 1.5 and 2.5 satoshi is rounded to 2 satoshi.
So, the base prize should be decreased to 2 satoshi once bitcoin price reaches 80,000 dollar.
Price >
0.002/
0.000000025 ----->
Price > 80,000 dollar