Does percent error measure accuracy or precision?

I believe it is accuracy

Explanation:

When preforming experiments accuracy and precision refer to two separate things. Accuracy is how close to the actual value you are while precision is how grouped your values are. The goal is to have both high accuracy and high precision. Standard Deviation is a measurement used for precision while Percent Error is a measurement used for accuracy.

Precision

Explanation:

It figures out how close all of the data numbers are.