To investigate or not to investigate before management determines whether to investigate a particular variance, there are a range of factors that ought to be considered.
o Materiality. Small variations in a single period are bound to occur and are unlikely to be significant. Obtaining and’explanation’is likely to be time-consuming and irritating from the manager concerned. The explanation will probably offer be’chance’which is not, in any case, particularly helpful. For these variations further investigation is not rewarding.
o Controllable. When there is general global price increase in the price increase in the price of an important raw material there is nothing that can be done internally to control the impact of this. Uncontrollable

o Variance treads. If, say, an efficiency variance is $ 1,000 adverse in month 1, the obvious conclusion is that the process is out of control and that corrective action must be taken. This may be correct but what if the same variance is $1,000 adverse every month? The trend indicates that the approach is in control and the standard has been erroneously set. Suppose, however, that the same variance is consistently $1,000 advise for each of the first six months of the year but that production has steadily fallen form 100 units in month 1 to 65 units by month6.The variance trend in absolute terms is constant, but relative to the number of units generated, efficacy has tot steadily worse.
Management signals from variances fashion information.
Variance analysis is a fix of assessing performance, but it is simply a method of signaling to management areas of possible weakness where management action may be necessary. It does not supply a ready-made diagnosis of faults, nor does it supply management with a reedy made indication of what action has to be taken. It merely highlights things for potential investigation.
Individual variances shouldn’t be looked at in isolation. As an obvious example, favorable sales price variance is likely to be accompanied by an adverse sales volume variance: the increase in price has caused a fall in demand. sample variance calculator know in addition that pair of variances should be inspected for a number of consecutive periods if their full significance is to be appreciated.
Here are a Few of the signals that may be extracted form variance fashion information,
O Materials price variances may be favorable for a month or two, then shift to adverse variances from the upcoming few weeks and so forth. This could indicate that process are seasonal and perhaps stock could be built up it cheap seasons.
O Regular, perhaps fairly slight, increase in adverse rice variances usually indicates the functioning of general inflation. If desired allowance can be made to general inflation when flexing the funding.
O Rapidly large increases in adverse price variances may suggest a scudded scarcity of a source.
O Gradually improving labour efficiency variances may signal the existences of a learning curve, or the success of a productivity bonus scheme. In either case opportunities must be sought to encourage the trend.
O Worsening trends in machine running expenses may show that gear is deteriorating and will soon need repair or even replacement.
Interrelationships between variances
Quite possible, individual variances shouldn’t be looked at in isolation. One variance might be inter-related together with another, and a lot of it might have happened only because the other, inter-related variance occurred too.

O Material price and usage-if cheaper materials are purchased to be able to obtain a favorable price variance, materials wastage may be higher and an adverse usage variance may happen. When the cheaper material is more difficult to handle, there could be an adverse labour efficiency variance too. If more expensive material is purchased, however the price variance will be adverse however, the usage variance may favorable.