Micro Strategy has purchased 607,770 Bitcoins since August 11, 2020.
On August 11, 2020, 21,454 Bitcoins were purchased and they have purchased another 83,630 Bitcoins throughout the year.

11 Aug 2020 Number of Bitcoins in Holding = 21454
11 Aug 2021 Number of Bitcoins in Holding = 105 084
11 Aug 2022 Number of Bitcoins in Holding = 129 699
11 Aug 2023 Number of Bitcoins in Holding = 152 800
11 Aug 2024 Number of Bitcoins in Holding = 226 500
22 July 2025 That is, today Micro Strategy Bitcoin Holding 607 770
That is, in the first year of investment they purchased Bitcoin = 83 630
Purchased in the second year = 24 615
Purchased in the third year = 23 101
Purchased in the fourth year = 73 700 Bitcoins purchased in a year i.e. 11 months = 381 270 Bitcoins.

From this it can be seen that in the last one year they have purchased (381 270×100)÷607 770= 62.732% of their total Bitcoin holdings.

Let's see how they reach this percentage in the next year.