Devide/0 error

[Jean-Paul De Winter]

Hi,

Following formula works perfect but of course returns a DEVIDE/0! error
when cells E9 trough I9 are all empty

=(SUM(E9:I9)*100/COUNT(E9:I9))/10

How to avoid this error?
Thanks

 

[Frank Kabel]

Hi
try
=IF(COUNT(E9:I9),(SUM(E9:I9)*100/COUNT(E9:I9))/10,"")