A bit confused about the mathematics of injecting.

About to start a Test E only cycle, vial says it contains 10ml. If I am pinning 500 mg per week, then one vial should last me two weeks, correct?

I am using a 2.5 ml syrine, so the full length of the syringe, pinned A total of 4 times = 1 vial.

Just need to be re assured, thanks.