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#1
November 18th, 2009, 03:17 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenario
I have G25=60 and H25=30, where a person was given 60 days to perform a task
and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help! 
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#2
November 18th, 2009, 03:39 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenario
=IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1))
"WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help!
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#3
November 18th, 2009, 03:54 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenari
Thanks RonaldoOneNil
I do however also need it to work correctly for any other single increments in the numbers, i.e. if I have G25=60 and H25=54, I expect an answer of 110% performance, and I get 190% with the formula above. "RonaldoOneNil" wrote: =IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1)) "WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help!
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#4
November 18th, 2009, 05:01 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenari
WileWill -
=IF(G25H25,1+(G25-H25)/G25,IF(G25=H25,1,H25/G25-1)) -- Daryl S "WildWill" wrote: Thanks RonaldoOneNil I do however also need it to work correctly for any other single increments in the numbers, i.e. if I have G25=60 and H25=54, I expect an answer of 110% performance, and I get 190% with the formula above. "RonaldoOneNil" wrote: =IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1)) "WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help!
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#5
November 18th, 2009, 06:25 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenari
Hi Daryl S
Not quite: following my example, once I reach a situation of G25=60 and H25=120, I should hypothetically get an answer of 0%, since it has taken the member twice as long to achieve the result as defined by the terget (60) - but it actually returns 100%. "Daryl S" wrote: WileWill - =IF(G25H25,1+(G25-H25)/G25,IF(G25=H25,1,H25/G25-1)) -- Daryl S "WildWill" wrote: Thanks RonaldoOneNil I do however also need it to work correctly for any other single increments in the numbers, i.e. if I have G25=60 and H25=54, I expect an answer of 110% performance, and I get 190% with the formula above. "RonaldoOneNil" wrote: =IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1)) "WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help!
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#6
November 18th, 2009, 06:43 PM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenari
This will give you what you want
=1+(G25-H25)/G25 HTH, Bernie MS Excel MVP "WildWill" wrote in message ... Hi Daryl S Not quite: following my example, once I reach a situation of G25=60 and H25=120, I should hypothetically get an answer of 0%, since it has taken the member twice as long to achieve the result as defined by the terget (60) - but it actually returns 100%. "Daryl S" wrote: WileWill - =IF(G25H25,1+(G25-H25)/G25,IF(G25=H25,1,H25/G25-1)) -- Daryl S "WildWill" wrote: Thanks RonaldoOneNil I do however also need it to work correctly for any other single increments in the numbers, i.e. if I have G25=60 and H25=54, I expect an answer of 110% performance, and I get 190% with the formula above. "RonaldoOneNil" wrote: =IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1)) "WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help!
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#7
November 19th, 2009, 08:30 AM
posted to microsoft.public.excel.misc
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Mathematically accurate % calculation for "over-score" scenari
Ahhhh Absolution!!! Bernie - thank you so much!
"Bernie Deitrick" wrote: This will give you what you want =1+(G25-H25)/G25 HTH, Bernie MS Excel MVP "WildWill" wrote in message ... Hi Daryl S Not quite: following my example, once I reach a situation of G25=60 and H25=120, I should hypothetically get an answer of 0%, since it has taken the member twice as long to achieve the result as defined by the terget (60) - but it actually returns 100%. "Daryl S" wrote: WileWill - =IF(G25H25,1+(G25-H25)/G25,IF(G25=H25,1,H25/G25-1)) -- Daryl S "WildWill" wrote: Thanks RonaldoOneNil I do however also need it to work correctly for any other single increments in the numbers, i.e. if I have G25=60 and H25=54, I expect an answer of 110% performance, and I get 190% with the formula above. "RonaldoOneNil" wrote: =IF(G25H25,H25/G25+1,IF(G25=H25,H25/G25,H25/G25-1)) "WildWill" wrote: I have G25=60 and H25=30, where a person was given 60 days to perform a task and he ended up performing the task in 30 days. Thus he has "over-performed" and scores 150% for that task. If he completed the task in 60 days, I would have G25=60 and H25=60 and I would expect a calculated % of 100% performance. If he completed the task in 90 days, I would have G25=60 and H25=90 and I would expect a calculated % of 50% performance. I have tried using (G25/H25)-(H25/G25), whihc works fine for the top example and gives me 150%, but for all the other combinations it gives me wrong andswers, i.e. with G25=60 and H25=60 I get 0% and I should get 100%, and with G25=60 and H25=90 I get -83% and I shoud get 50%. Please help! .
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