https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/102725.aspxTue, 02 Jun 2015 22:33:55 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:102725rgood0https://www.infopathdev.com:443/forums/thread/102725.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=102725<p>I have a form that I am trying to do a subtraction to.</p><p>&nbsp;</p><p>I have two dates that give me the number of days.&nbsp; Then I have two drop down list that give me&nbsp;a two-digit time but is just a text.</p><p>&nbsp;</p><p>I have a rule&nbsp;that says if the first drop down is greater than the 2nd drop down, take the number of days&nbsp;and subtract one.</p><p>&nbsp;</p><p>I have tried:&nbsp; number(days) - 1&nbsp;and so&nbsp;forth but I can&#39;t get it to give me a number or result.&nbsp; Field (text)&nbsp;ends up empty.&nbsp;</p>