Hi there! Sorry about offtopic'ing here, but I'm out of other ideas. If I recall correctly, you're in charge of "MattyIce" GitHub account? Any chances you could take a look on https://github.com/MattyIce/bottracker/pull/49 ? That fixes some serious bugs in rewards-calculator.. although to be honest so much time passed since I posted that PR that today I'm not even sure if the formulas I fixed are still up to date (--') But! at least! the JS bitwise shift()/and()/or() routines don't go into negatives giving ridiculous results..