Is it worth the time?

A calculator based on xkcd #1205

We perform a routine task time every secondminutehourdayweekmonthquarteryear. We think we can save secondsminuteshoursdaysweeksmonthsquartersyears each time we perform this task by optimizing it. We want to recoup our optimization investment within secondsminuteshoursdaysweeksmonthsquartersyears through time saved performing the task.

To fulfill these criteria, we can spend no more than 2.2 hours optimizing.

Should we invest our time?