Am I doing this right?

Im using the Histogram MAF Low - Short Term Fuel Trims (Gen4).hst

These were the numbers I got from 2800hz-5800hz

22.03414 29.36870 31.75658 23.65581 17.46021 21.73345 21.01667 23.33438 19.40199 22.14408 20.94274 20.39585 13.20919 14.02574 11.05911 11.47554 11.92315 15.91031 18.94746 18.46708 16.83342


does that look right? It looks way off from factory...

 

It doesn't look anywhere near low enough...
Those values are far too high regardless of units of measure (or size of MAF).
Think about it this way: Does the change in airflow (from old to new) seem to correspond to the percent change of the values. If those values are 3 times greater than stock (which is pretty close to right), do you believe that actual airflow has been increased 3 times over stock, or that intake reversion is really that bad? If it doesn't seem right, somewhere or other there has been an error in calculation. That, or you have one serious-*** engine with a cam the size of...
Well, you get the picture.