F2 could 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 × a hundred (12) https://edgar5wfmt.blog2news.com/31679675/5-tips-about-how-to-clean-sewage-in-qassim-you-can-use-today