This is my stash screen atm:
344.676.773
Interest Rate: 0.02%
but the text underneath says 0.01% for every 100M, so it should be 0.03%. In fact up to today it's been working fine (rounding appropriately) but for some reason it now seems to have frozen at 0.02%.
ahydra
edit: it's now 399.991.787 and showing 0.04% (correct). Not sure what's happening
edit2: I donated, got a bunch of credits and it's gone wrong again.
12.302.110.395
Interest Rate: 1.22% (should be 1.23%)
Looks suspiciously like floating point rounding problems - suggest using a 64-bit integer type for the stash credits (and regular credits etc) and then dividing this down to 100x the interest rate first, then converting to a float, rounding and dividing by 100.