How to evaluate a promotion with no pay raise
Isolate the key differences in positions.
Ask your employer for a clear breakdown of what the new job would entail on a day-to-day basis. Either take detailed notes as they tell you, or request this information by email and save it.

Go through the description and isolate all the aspects that are different from your current job. For example, being promoted from an administrative assistant position to an executive assistant position will mean basic office tasks, plus the responsibility of handing an executive's calls, emails, schedule, and correspondence.

Kale is being chopped up on a cutting board. It is tossed in salt for a few minutes. Carrots are grated over the kale. a tomato

is diced and mixed with dressing.

This woman is showing viewers how to wrap a square boxed gift. First she folds the paper a certain way making it look like a trapezoid. then she

folds it again and puts tape onto it to hold it down.

There's a man on stilts jumping and doing stunts in an indoor gym. There are several spectators and judges watching him perform. after the man
finishes his stunts, he gets off the stilts and the judges write down the scores.