Number less than 80 subtract number less than 50
=CountIf(A1:A50,"<80") - CountIf(A1:A50,"<50")
You may need: Number less than 80 subtract number less than or equal to 50
=CountIf(A1:A50,"<80") - CountIf(A1:A50,"<=50")


OR use SUMPRODUCT to range <80 and range 50
=SUMPROUDCT(--(A1:A50<80) ,--(A1:A5050))

For more details on SUMPRODUCT
Bob Phillips
http://www.xldynamic.com/source/xld.SUMPRODUCT.html
J.E McGimpsey
http://mcgimpsey.com/excel/formulae/doubleneg.html
Debra Dalgleish
http://www.contextures.com/xlFunctio...tml#SumProduct

best wishes
--
Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"Otto Moehrbach" wrote in message
...
Excel XP
The formula =CountIf(A1:A50,"<80") counts the cells that have a value less
than 80. How would I modify this formula to change the criteria to less
than 80 AND more than 50? Thanks for your time. Otto