formulas not working

I am working on a spreadsheet and having trouble with the formulas to calculate the times for each of the columns. I would like to be able to enter the times and have it calculate the rest. I am so frustrated and there has to be an easier way.:confused: thanks so much. <tbody> Date time...

i just took a class on excel, we learned a bit of formulas so now a day later i am fooling around and trying the new things i learned, however i am getting different results. i made up a quick fake spread sheet, consist of amount of money a individual makes each quarter, i was trying to get the...

Does anyone know if it is possible to combine two VLOOKUP formulas over multiple sheets within a workbook? I cannot seem to figure this out, and am becoming increasingly annoyed.

I have a workbook with multiple tabs that I update every other month with current data. I have one tab for data that I clear each time and copy the updated info into. (That info is copied from another excel spreadsheet, by the way.) On the second tab I have sumifs formulas set up to pull in...