Crane Company has a materials price standard of $2.50 per kilogram. 3990 kilograms of materials were purchased at $2.30 a kilogram. The actual quantity of materials used was 3650 kilograms, although the standard quantity allowed for the output was 3550 kilograms. Crane Company's total materials variance is

$4832 U.

$548 F.

$100 F.

$5480 U.