I have entered the following formula within a new calculated item to
calculate the variance between actual and budget values with the view to
making zero values or error values a blank cell. When I insert the formula
it removes the logic of only displaying the records relevant to the page
setting and I get the same records repeated for each page setting with #VALUE!

Variance
=IF(OR(ISERROR(SUM(Budget)-SUM(Actual)),SUM(Budget)-SUM(Actual)=0),"",SUM(Budget)-SUM(Actual))

Thanks