Production Variance Analysis is most important and need to analyze for every manufacturing industry sectors to cost control.
Variance Categories
The variances are assigned to variance categories in the following sequence:
Input Side Variances
Input price variance
Input quantity variance
Resource-usage variance
Remaining input variance
Output Side Variances
Mixed-price variance
Output price variance
Lot size variance
Remaining variance
Scarp Variance:
Assembly Scrap:
Operation Scrap
Component Scrap
Input Side Variances
Variances reported on the input side of manufacturing orders from production transactions like goods issue, confirmation of order etc.
• Input Price Variance
Input price variance occurs because of changes in prices which is planned price and actual price.
• Input Quantity Variance
Input quantity variance occurs because of difference between the planned and actual quantity and activities consumed.
• Resource Usage Variance
This kind of variance generally occurs when the substitute component is used instead of planned one.
When the planned material is not and alternate material is used in production process the resource usage variance is seen because of cost difference of both materials.
• Remaining Input Variance
When available variance on order is not possible to assign to any of the categories above mentioned system treats this as a remaining input variance.
The possible reason to get the remaining input variance is overheads rates are changed meanwhile.
Output Side Variances
• Output Price Variance
The output price variance occurs because if standard price is changed after the credit posted to stock and before calculation of variances on production order.
.• Mixed Price Variance
Mixed price variance occurs when material is valuated based on using mix cost estimate. The target cost of credit in this case is dependent on confirmed quantity of standard cost from procurement alternative and actual cost is depend on actual quantity confirmed on standard price.
• Lot Size Variance
The lot size variance arises due the difference between the lot size used in manufacturing order and lot size at the time of standard cost estimate.
• Remaining Variance
Remaining variances occurs on order when system is not able to assign variance to any categories.
Remaining variance also considered when target cost of the material is not present in system as like when standard cost estimate does not available in system or goods receipt against a production order has not been performed.
