Wow with MSTR, I pretty much doubled my money in just a single month? Wow.
Pretty obvious:

100% return, how many X?
If you want a 100% return on your investment, it means your investment must double in value.
For example:
• If you invested 1X, you need it to grow to 2X for a 100% return.
• Similarly, if you invested 10X, you need it to grow to 20X.
In short, you need 2 times the original investment (X) to achieve a 100% return.