Spark expected subscription calculations off

Please see attached deck. From GAD:

I wanted to recap where we are at on the Spark feed and the discrepancies and get everyone on the same page. After several back and forth between the Spark Analysts and Sunil, we've come to one of 2 conclusions on the Spark Yield Curve Variable (YCV):

1. We have an incomplete formula

2. The calculations in AdMax have always had an error in calculations

Either of the two potential conclusions will require assistance from yourself and the Engineering team. To sum everything up, the value of the YCV was supposed to change on a regular basis which was not every day. Based on the current calculations and data presented in the PPT, YCV is changing on a daily basis. Furthermore, it shows that Conversions are a higher number than Regs which isn't logical.