"Aladin Akyurek" wrote...
=SUM(--(FREQUENCY(IF(A2:A15<=B2,MATCH(A2:A15,A2:A15,0)),
ROW(INDIRECT("1:"&ROWS(A2:A15)))-1)0))
....

=SUMPRODUCT((A2:A15<=B2)/COUNTIF(A2:A15,A2:A15))

may be more efficient, and it doesn't have to be entered as an array
formula.