Technical Questions
 Crystal Reports Forum : Crystal Reports 9 through 2022 : Technical Questions
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keristos
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Joined: 27 Sep 2011
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Quote keristos Replybullet Topic: Older value of an object?
    Posted: 27 Sep 2011 at 12:54am
I'm trying to do a report to calculate how much people owe the landlord in electricity bills.

To do this i need to subtract the electricity usage reading of a month ago from the reading of today (and hence get the reading for this month)

Any help on how I could do this on Crystal reports XI in a formula maybe?

Thank you very much

Edit: I connected crystal Reports to an OBDC data source that is produced by Factory Talk. It is an array of a number of tags with different values.

Edited by keristos - 27 Sep 2011 at 1:23am
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