No way to calculate the price in the future, it purely depends on the demand. While the demand is determined by many factors that make it complicated to measure. BTC supply isn't the ultimate factor that influences the price, don't forget that issues/news related crypto and Bitcoin sometimes have a bigger influence. They even can trigger the BTC price to move significantly in a short time. And, there are other factors such as inflation, that can contribute to influencing the price of BTC as well.