Which of the following is the best definition for how a materials price variance is calculated? Which of the following is the best definition for how a materials price variance is calculated? The difference between the materials used and the materials expected to be used. The difference between the standard quantity of materials purchased and the actual price of the materials. The difference between the flexible price of the materials and the standard price of the materials purchased. The difference between the actual quantity of materials purchased at the actual price and the actual quantity of materials purchased at the standard price