please be as clear and as simple as possible. I am trying to understand it. show me the steps, not only the answers. thank you in advance.

525.5 Compute materials price and quantity variance The standard cost of Product B manufactured by MIT Company includes three units of direct materials at $5.00 per unit. During June, 29,000 units of direct materials are purchased at a cost of $4.70 per unit, and 29,000 units of direct materials are used to produce 9,500 units of Product B. Instructions (a) Compute the total materials variance and the price and quantity variances. (b) Repeat (a), assuming the purchase price is $5.15 and the quantity purchased and used is 28,000 units NOTE: Enter a number in cells requesting a value; enter either a number or a formula in cells with a "?". (a) Total Materials Variance: Materials price variance: minus ? ? Materials quantity variance: AQX SP ( ? ? ( ) ) minus minus sa ? X x SP ? ) ) (b) Total Materials Variance: AO minus sQX (1 Value SP Value Value Value minus Value minus X Materials price variance: AQ X AP Value x Value minus ? ) minus ) minus Value ( d AQ Value Value Materials quantity variance: AQ SQ Value X x ) minus ) minus d Value SP Value Value x Value minus