Calculated Churn for Past 6 Months

I calculated churn for the first six months of Doka Image Editor sales (end of 2018, start of 2019). While I posted a celebratory update at the end of 2019 somehow the numbers for the following months dropped considerably.

Dec 12 -> 11 -> 10%
Jan 14 -> 8 -> 42%
Feb 18 -> 11 -> 38%
Mar 14 -> 6 -> 57%
Apr 20 -> 12 -> 40%
May 28 -> 16 -> 42%

I'm not sad but I would've liked more retention ( obviously :D ).

Some thoughts:

• The info is based on a very low number of sales, so it could be just the universe fucking with me.
• The software license is perpetual so cancelling doesn't prevent devs from using the product, therefor it's easier to cancel and repurchase later.
• Some customers decided to cancel and re-purchase a new license (license models are slightly different now).
• Peak in March may be related to COVID-19, but then again, it's just so random with the low numbers.

End of June 2019 was when I changed up the license model from domain based to project based, also, sales really started to grow by that point. So I'm very curious to see what the numbers will be for the next couple months.