问题
Can I, somehow, based on time stamp and how much is done, estimate time and date for when a job is complete? I got this log that a bot I've made writes in column A time [yyy-mm-dd hh:mm], and in column B it wrights how much is done. It sorts it all with newest on top.
回答1:
Gary's answer is correct, but for convenience if the 2nd row of data can be an arbitrary progress status (not just start of task = implicitly 0%), and if you use percentage number format (or decimals) and you would like to get the end date instead of just the duration, use following formula:
=A1+(A1-A2)/(B1-B2)*(1-B1)
回答2:
Consider:
In this example the time span is 1 hour and the percent complete in the time span is 78%
Cell C1 contains:
=100-B1
the percent remaining to be done.
In cell D1 is the formula:
=(A1-A2)/B1
D1 yields the time required to complete 1%
Finally in E1:
=D1*C1
the time required to complete the work!
(Note...C1,D1,E1 can be combined into a single formula)
EDIT#1
The formats of E1 and D1 were picked to display the relevent parts of the data
The format of D1,E1 is: mm-dd hh:mm:ss.00
Change this format to suit your needs!
来源：https://stackoverflow.com/questions/27945319/estimating-when-its-done-in-excel