A company uses standard costing and produces desks. It provides the following information for the month of July about lumber, which is a direct material for the desks:

Material Actual Price per pound Standard Price per pound Actual Amount Used in Production Actual Amount Purchased

Lumber $$8\mathrm{.}70$ $$8/$pound $15,680$ pounds $16,740$ pounds

The materials quantity standard is $30$ pounds of lumber per desk.

The company produced $300$ desks in July.

What is the materials price variance for lumber for the month of July?

$($Enter your answer as a positive number $-$ and if it is favorable or unfavorable$)$