Games : Is there a way to determine if specific micro is worth it?

In Starcraft you can use your attention to either hit the perfect timings on your macro or to micro manage your units.

The first one guarantees that your money is invested as soon as possible and you do not lose build cycles.

The second increases your effectiveness of your units beyond what they would be able to do without additional control.

If you are really good you can do both to some degree. Still there are limits to what is possible.

There is a point where micro hurts your gameplay overall, because you neglect macro. If you forget to build 2 SCVs while microing your Reaper to kill 1 Drone you are actually behind 1 SCV.

Is it somehow possible to calculate this in a replay?

For example

In replay XYZ I microed my Reaper for 10 seconds while neglecting macro. Was it worth it? Should I do it again?