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August 18, 2018 at 11:30 am
my question is about part d) when we calculate the excess idle time variance: the first part of the question with the actual idle time is ok. I am confused about the part where I should calculate the standard idle time. Here I see 3 possibilities and I don’t understand why only the one where we take the actual hours paid as a starting point is the correct one. We could have taken the actual units produced, multiplied by the difference in standard total time per unit and standard working time per unit 1000x (8-7,6) = 400h. Another possibility would have been to take the actual hours worked 7740 divide them by 0,95 and find out the number of hours that should have been paid.
John Moffat says
August 18, 2018 at 5:53 pm
Two things, first of all what I explain are the ‘standard rules’ that you are expected to use in the exam. Secondly, whatever we do, the various variances must, of course, be such as to add up to the overall labour variance 🙂
August 18, 2018 at 10:43 pm
Thank you, John! I will use the standard rules in the exam 🙂
August 19, 2018 at 10:09 am
You are welcome 🙂
August 16, 2017 at 7:59 pm
Under the rate of pay, why is it wrong to have used $8 rather than $5.7 as per the question. Since we’re aware we’ll be paying for 5% idle time regardless of how many units produced, why aren’t we considering that in analyzing the rate of pay?
August 16, 2017 at 8:02 pm
Oh.. I’ve seen my error. Don’t bother. The duration of idle time affects the hours per unit, not the standard pay per unit.
August 16, 2017 at 8:07 pm
I’m worried as to why we didn’t factor the 5% idle time under the standard efficiency since we were aware from scratch there will be idle time. Why is it wrong to use 8hrs x 1000hrs?
August 17, 2017 at 8:58 am
I am pleased that you have sorted it out 🙂
June 6, 2017 at 6:49 pm
Thank you sir for the lecture. This might be a very absurd and silly question, but I need to ask you, when we calculate the total hours to be paid for in the part (a) of the question, it gives an answer of 7.98hrs. And when we multiply it with the rate per hour, with this number of hours (without rounding off) it gives a value of $45.49 My question is when is it necessary for us to round off to two decimal places and when should we round it off to 5 decimal places, and when it is necessary for us to round it off to the neared ones.
April 19, 2017 at 6:54 am
Sir, For calculating Total lab variance, you’ve compared Actual hours @ Actual Cost with Std cost for Act prdn… 1000u @ $45.6.
Well I tried comparing with Actual Lab hours paid @ Rate per hour – 8200 @ $5.70
Please correct me..
April 19, 2017 at 4:23 pm
But why do you want to compare with actual labour hours?
For all variances, the total variance is the difference between the actual cost and the standard cost for the actual production – that is for all variances, not just for labour.
The idle time only becomes relevant when we analyse the total variance as I do in the lecture.
April 20, 2017 at 1:10 pm
Thank you Sir for the clarification.
April 20, 2017 at 5:07 pm
You are very welcome 🙂
December 3, 2016 at 5:59 pm
Please can you explain why $5.70 was used in the rate of pay variance whereas $6.00 was used in the efficiency and idle time variances?
Thank you, Meg
December 4, 2016 at 7:15 am
Because for the pay variance all we are concerned with is whether or not we pay the correct wages per hour (which should be 5.70 per the question).
For the other two we are gaining or losing working hours and the cost per working hour is higher (because the budgeted idle time is taken into account).
December 4, 2016 at 11:10 am
Makes sense, thank you so much 🙂
December 4, 2016 at 2:18 pm
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