The general model for calculating a quantity variance is: Multiple Choice Actual price x (Actual quantity of inputs used Standard quantity allowed for output). Actual quantity of inputs used x (Actual price - Standard price). (Actual quantity of inputs used * Actual price) - (Standard quantity allowed for output x Standard price). Standard price x (Actual quantity of inputs used Standard quantity allowed for output). Poorly trained workers could have an unfavorable effect on which of the following variances? B Labor Rate Variance Yes Yes No No Materials Quantity Variance Yes No Yes No