Vaughn Paints manufactures artist's oil paints. Each $40ml$ tube of paint requires $5$ minutes of direct labor, and the standard labor rate is $$8\mathrm{.}50$ per direct labor hour. In September, Vaughn incurred $11,710$ direct labor hours at a cost of $$100,070$ to produce $140,700$ tubes of paint.

Calculate Vaughn's direct labor rate variance for September. $($Round intermediate calculations to $5$ decimal places, e$.$g$.1\mathrm{.}24638$ and final answer to $0$ decimal places, e$.$g$.5,275.)$

Direct labor rate variance