TIBOQuery's Edit Query shows in design time the value as 1.63, but
when shown in QReport the value is 1.64

I casted the average result:
cast (avg(AVERAGE) as numeric(15,4)) as aver,min(average)
and now the results are equal (1.64) everywere.

The offending value was 1.6355.

Riho Ellermaa