Vaughn Company's standard materials cost per unit of output is $$8\mathrm{.}20(2\mathrm{.}00$ pounds $x$$$4\mathrm{.}10).$ During July, the company purchases and uses $2,340$ pounds of materials costing $$12,402$ in making $1,300$ units of finished product.

Compute the total, price, and quantity materials variances. $($Round per unit values to $2$ decimal places, e$.$g$.52\mathrm{.}75$ and final answers to $0$ decimal places, e$.$g$.52.)$

Total materials variance

Materials price variance

Materials quantity variance