We have seen a few more monthly donors since launching Upsell but only one through Upsell. I suspect donors are choosing monthly donation after being prompted through Upsell but canceling the current donation and then selecting their preferred monthly donation amount. It would be better if the donor had the option to choose their own monthly donation amount within the Upsell pop up.
The current percentages are a hard sell and seem like they might deter donors from giving at all. I would prefer to see these percentages at 20% & 10% of the one-time gift ($50 one-time would become either $10/month or $5/month) $120 or $60 annually is still better than $50 one-time while still being reasonable for the donor. I personally would never give 35% monthly - that would be over 4X my intended gift annually and I might be offended if I'm made to feel that what I'm willing to give is not enough.