From $79,773.66, CoinDesk's quote on Wednesday morning, bitcoin would have to rise 25.4% to reach $100,000 by the end of December 31. Spread over the 65 days left, that works out to about 0.348% a day, or 2.46% a week, compounded. A return to $90,000 would take 12.8%, about 0.186% a day, and topping the $126,199 peak bitcoin set on Binance in October 2025, per BeInCrypto, would take 58.2%, about 0.708% a day. This is arithmetic, not a forecast. The chart going into today's Fed decision, due at 2 p.m. Eastern, leans against the bulls in the near term. In a Bitcoin.com News report from Monday morning, 9 of 15 moving averages read negative, with price under the 10-period exponential average at $81,342 and the 50-period at $80,746 but still above the 100-period at $77,636 and the 200-period at $76,304. The swing low at $79,146 is the line to hold, with $78,500 and $78,000 below it, while sellers sit at $80,500 to $80,900 and then $81,500 and $82,000. Our bitcoin price target calculator runs the same math for every level from $40,000 to $150,000 against any date you choose, next to how much bitcoin has actually been moving on an average day.