John Moffat saysDecember 6, 2018 at 5:17 pmTo calculate an average you add the two numbers together and divide by two!!I explain why in my free lectures on investment appraisal.Log in to Reply

tabusheev saysDecember 6, 2018 at 10:03 amWhy average investment 3900+100 and not 3900 – 100 ?Log in to Reply

lloyd saysDecember 6, 2018 at 6:27 pmTabSince we are talking of an average, we need to to get the sum of number of figures available and then divide the answer by number of figuresLog in to Reply

John Moffat says

To calculate an average you add the two numbers together and divide by two!!

I explain why in my free lectures on investment appraisal.

tabusheev says

Why average investment 3900+100 and not 3900 – 100 ?

lloyd says

Tab

Since we are talking of an average, we need to to get the sum of number of figures available and then divide the answer by number of figures

John Moffat says

Correct 馃檪