During June, Cisco Company produced $12,000$ chainsaw blades. The standard quantity of material allowed per unit was $1\mathrm{.}5$ pounds of steel per blade at a standard cost of $$8$ per pound. The actual cost was $$7$ per pound. The actual pounds of steel that Cisco purchased were $19,500$ pounds. All materials purchased were used. Calculate Cisco's materials usage variance.

$$10,500U$

$$12,000F$

$$12,000U$

$$10,500F$