Medical Instruments produces a variety of electronic medical devices. Medical Instruments uses a standard cost system and computes price variances at the time of purchase. One product, a thermometer, measures patient temperature orallt. It requires a silver lead with a standard length of 5 inches per thermometer. To make the leads, hollow silver tubing is purchased at a standard price of $4 per inch, cut into the required length, and then assembled into the thermometer.
There is no silver tubing in inventory when a batch of 200 thermometers was scheduled for production. Twelve hundred inches of silver tubing were purchased for $4,680 by the purchasing department for this 200-unit batch of thermometers, and 1,100 inches were used in production.
Compute the materials variances for silver tubing and comment on their meaning.
See variances computed in Excel (attached). Click in cells to see computations. Your tutorial created a chart showing you how to isolate the price variance at purchase and then the usage variance at production.