calculating productivity
calculating productivity
(OP)
A company has set standards: 0,15789 ton/minute equivalent to 6,359 minutes/ton.
One day the results were:
Tons produced: 228
Minutes worked: 1020
The production manager says: “Great day!” “Our tons/minute was 228 tons / 1020 mins, resulting in 0,22359 ton/minute. That is a dazzling 41,6% better than our standard!”
The assistant looks at him and says: “Sorry, but we were not THAT good.” “We produced 228 tons which gave us – 228 tons times 6,359 minutes per ton – about 1450 minutes to do it. We did it in 1020 minutes. The difference is 430 minutes saved against a base of the allowed 1450 minutes, only 29,6% better. Sorry….”
Who is right?





RE: calculating productivity
The math is correct in both cases, allowing for the slight divergence in the two numbers provided in the standard.
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: calculating productivity
The Production Manager would say: "I am right anyway - even with your calculation - because 1450 divided by 1020 = 141,6%."
Yes the math is correct in both cases, but who is right in the end?
RE: calculating productivity
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: calculating productivity
1-(1/1.416) = 29.38%
TTFN
RE: calculating productivity
- 0.22353 t/min / 0.15789 t /min = 141%
- 1450 min / 1020 min = 141%
RE: calculating productivity
How many orders have been fulfilled / How many tonnes you sold - now thats a number that would be worth seeing.