"Every 3 Months" vs. "Quarterly"

This is a small request, but the language around quarterly would be clearer if you changed it. Right now, it reads “$X/ quarter,” but quarters are business terms, so that is a bit confusing. It would be clearer to say “every 3 months,” “per 90 days,” or something similar that denotes a time period starting with the first payment rather than the next quarter of the year.