OT Notes – Chapter 19, Business orientated example (3.2)

Hi

If there a mistake in the calculation of the ‘Does not have aptitude’ amounts.

I worked it out as:

Does not pass test; 9900 * 95% = 9405
Passes test; 9900 * 5% = 495

80/575 = 13.9

Unless I am calculating incorrectly? Just want to double check that I understand that whole topic properly.

Thanks!