F2 may be calculated as follows: File two = N u m b e r o f f a i l e d t e s t s T o t a l n u m b e r o file t e s t s × 100 (12) Moreover, https://beckett6gqyf.howeweb.com/31688458/examine-this-report-on-how-to-clean-sewage-in-qassim