Question: how to calculate material usage variance percentage?
Answer: Step 1: Calculate Standard Quantity. Limestone: 10,000 units. x. 11 / 1000. = 110 tons. Clay: 10,000 units. x. 14 / 1000. ... 
Step 2: Calculate the Variance. Material Usage Variance = [Actual Quantity - Standard Quantity (Step 2)] x Standard Price. Limestone: (100 - 110) x. $70. =