Mining generates SELL pressure
Security node owning generates BUY pressure
Taking a miners side via 88% / 3.5% ratio is ridiculous.. and it's already shown on charts.
Please, reconsider it! Make it at least 65 / 25 .. and all the miners will be happy too, cause they will mine an expensive currency..
P.S Those calculator screenshots are wrong. Rise the "Number of Security Nodes" until you get "Annual ROI in ZEN" around 10-15% and you'll get the correct picture..