I want to use excel to subtract two times and then divide a specified cell by
the sum and return the value. Example: I get to point A @ 7:00am depart @
9:00am and deliver 864 boxes. How many boxes per hour did I deliver? When I
sum 9:00am - 7:00am I get 2:00 then if I divide 864 by that I get 0:00 if I
leave it formatted as time. And if I change the format to general I get
10368?? I should get 432

XL stores times as fractional days, so you can use regular math
operations on them. To get fractional hours, multiply fractional days by
24:

A1: 864
A2: 7:00
A3: 9:00

A5: = A1/((A3-A2)*24)


In article ,
"LostNFound" wrote:

I want to use excel to subtract two times and then divide a specified cell by
the sum and return the value. Example: I get to point A @ 7:00am depart @
9:00am and deliver 864 boxes. How many boxes per hour did I deliver? When I
sum 9:00am - 7:00am I get 2:00 then if I divide 864 by that I get 0:00 if I
leave it formatted as time. And if I change the format to general I get
10368?? I should get 432

On Tue, 1 Mar 2005 04:11:01 -0800, "LostNFound" wrote:

I want to use excel to subtract two times and then divide a specified cell by
the sum and return the value. Example: I get to point A @ 7:00am depart @
9:00am and deliver 864 boxes. How many boxes per hour did I deliver? When I
sum 9:00am - 7:00am I get 2:00 then if I divide 864 by that I get 0:00 if I
leave it formatted as time. And if I change the format to general I get
10368?? I should get 432

Excel stores time as fraction of a day.

So to get what you wish:

Boxes per hour: =Boxes/((Departure-Arrival)*24)

or

Boxes per hour: =Boxes/(Departure-Arrival)/24


--ron

hi,
you are dealing with time.
24 hrs is 1 (day).
2 hours is 1/12 of 1(day) or .08 days
2 hours is not 2 (days)
your are not deviding by 2. your are deviding by .08
864/.08=10368
best you stick to whole numbers for this. avoid time.
9-7=2/864=462

-----Original Message-----
I want to use excel to subtract two times and then divide
a specified cell by
the sum and return the value. Example: I get to point A @
7:00am depart @
9:00am and deliver 864 boxes. How many boxes per hour did
I deliver? When I
sum 9:00am - 7:00am I get 2:00 then if I divide 864 by
that I get 0:00 if I
leave it formatted as time. And if I change the format to
general I get
10368?? I should get 432

.