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# TOPIC: PM Formulas

## PM Formulas 6 years 9 months ago #7295

 Damien Topic Author Visitor Hi I purchased the 105 Formula Questions. I'm looking to clarify the answer to question No.73. The answer given is A) 486,300. When I calculate using the correct formulas I get an answer of CPI = 240,000 / 253,700 = 0.9459. Is this ratio that added to the nearest decimal point, i.e. 0.95 ?? Using the answers ratio of 0.946 EAC = 700,000 / 0.946 = 739,957.716 • ETC = EAC – AC = 739,958 – 253,700 = 486,258 If you round off 0.946 to 0.95 you get EAC = 700,000 / 0.95 = 736,842,10 • ETC = EAC – AC = 736,842 – 253,700 = 483,142 Regards Damien Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## PM Formulas 6 years 9 months ago #7297

 Yasir Mehmood Offline Junior Boarder Posts: 38 Karma: 2 Thank you received: 11 Hi Damien, I didn't have the question so I took the long route but basically if you use CPI with more decimal places the answer works out. As you noticed rounding the CPI up even one decimal place makes a fairly large difference in the final answer. You mentioned CPI = 240,000 / 253.700 so that tells me the question gives you the EV as 240,000 and AC as 253,700 You mentioned EAC = 700,000 / CPI which tells me that the question gives you BAC as 700,000 (I now know I didn't need to do that ) CPI = 240,000 / 253,700 = 0.945945945 EAC = BAC / CPI => 700,000 / 0.945945945 => 740,000.00074 ETC = EAC - AC => 740,000.00074 - 253,700 => 486,300.00074 => 486,300 Yasir Mehmood, MBA, PMP, PMI-ACP, CSM, CSP, CLP (LeSS), CSPO Community Moderator Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## PM Formulas 6 years 9 months ago #7304

 Aishah Ismail Offline Fresh Boarder Posts: 1 Thank you received: 0 pls advice where you gotten the 105 formula qns? I would like to practice. kindly email me This email address is being protected from spambots. You need JavaScript enabled to view it. Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## PM Formulas 6 years 9 months ago #7307

 Yasir Mehmood Offline Junior Boarder Posts: 38 Karma: 2 Thank you received: 11 Hi Aishah, You can purchase the formulas and the 105 sample questions here. https://www.project-management-prepcast.com/pmp-exam/the-pm-formulas Yasir Mehmood, MBA, PMP, PMI-ACP, CSM, CSP, CLP (LeSS), CSPO Community Moderator The following user(s) said Thank You: Cornelius Fichtner Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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