I am running a simulation of fluid flow and then doing an actual physical experiment to confirm the results of the simulation.

My simulated results show a value of 0.529 m/s and my experiment show a result of 0.532 m/s. So the values differ by less than 1%. (\* It really doesn't matter what the number refer to \*)

I studied accuracy and precision in my Physics classes. But, I can't figure out how to "prove" to myself, using math or rational logic 8-), that a less than 1% difference is basically "accurate" or "the same"..