IF Function Multiple Statements

[markdst]

I think I need a combined IF function for the one cell. IF there are any unit purchases I need it to take them into account when subtracting from the previous days reading by adding them first. Does that make sense?)

See attached, cell E6 has a skewed consumption figure as a purchase was made, result / usage should only be 16. D7 the following days reading should take into account that you have made a purchase the day before and take it into consideration when calculating the consumption by adding it first. The closing reading is a physical reading that is taken from the meter.

 

[Fluff]

Cross-posting (posting the same question in more than one forum) is not against our rules, but the method of doing so is covered by #13 of the Forum Rules.

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Cross posted at: IF function Meter Reading Sheet
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If you do cross-post in the future and also provide links, then there shouldn’t be a problem.