use a Running total (or variable formula if you desire)
New RT
Name=Min_w_zero
field to summarize=EvOrder
summary type = minimum
evaluate = use a formula
{table.activity}=0
reset= never (assuming you are not grouping and need group level result)
place in report footer (or group footer) -RTs do not work in headers
Edited by DBlank - 16 Nov 2011 at 7:40am