answer both a and b please asap thank you

The standard cost of Product B manufactured by Crane Company includes 2.7 units of direct materials at $6.20 per unit. During June, 26,700 units of direct materials are purchased at a cost of $6.05 per unit, and 26,700 units of direct materials are used to produce 9.800 units of Product B. (a) Comnute the total materials variance and the price and quantity variances. (b) Compute the total materials variance and the price and quantity variances, assuming the purchase price is $6.25 and the quantity purchased and used is 26,500 units