Hello One and All,

I need help with this IF function problem please. It works in scenario 2 but gives a zero in Scenario 1.

Below are two examples with the different cell amounts and their
units.
NB. After the first cell references C16 and E16 my <(less than symbol) disappears from what i can see right here on this page, however in Excel this doesn`t happen.

Scenario 1:
=IF(C160,0,SUM((A5)-(A5/A15)*C3)*C5)
C16 is the formula cell only
A5 is the input cell and is 50 minutes of talk time used to land lines
peaktime,
A15 is 250 minutes of total talk time used for all types of calls,
C3 is the tariff call allowance of 200 minutes
C5 is £0.10 the call cost for land lines at peak time per minute
This should give an answer of £1.00 (but shows £0.00)

Scenario 2:
=IF(E160,0,SUM((A5)-(A5/A15)*E3)*E5)
E16 is the formula cell only
A5 is the input cell and is 50 minutes of talk time used to land lines
peaktime,
A15 is 250 minutes of total talk time used for all types of calls,
E3 is the tariff call allowance of 400 minutes
E5 is £0.10 the call cost for land lines at peak time per minute
This should give an answer of £0.00 (and does)

Circular reference keeps flagging up but when i check the formula with
the logical test it gives the correct answer everytime. When i close
the formula check box £0.00 is shown in the cell regardless of whether
the value is higher than zero or not. Very confusing and totally beyond
my knowledge. Any further help would be greatly appreciated.

Best Regards

Gareth...