The standard cost of Product B manufactured by Pharoah Company includes $2\mathrm{.}6$ units of direct materials at $$5\mathrm{.}30$ per unit. During June, $27,400$ units of direct materials are purchased at a cost of $$5\mathrm{.}05$ per unit, and $27,400$ units of direct materials are used to produce $10,400$ units of Product B$.$

$($a$)$

Compute the total materials variance and the price and quantity variances.

Total materials variance

Materials price variance

Materials quantity variance

$

$

$

$

$($b$)$

Compute the total materials variance and the price and quantity variances, assuming the purchase price is $$5\mathrm{.}40$ and the quantity purchased and used is $26,900$ units.

Total materials variance

Materials price variance

Materials quantity variance

$

$

$