The calculation may be correct but the UI here is a bit confusing. Shouldn’t it be 0-30, 31-60,61-90 instead of 0-30,30-60…note the overlapping days.
The calculation may be correct but the UI here is a bit confusing. Shouldn’t it be 0-30, 31-60,61-90 instead of 0-30,30-60…note the overlapping days.