A company produced $2,200$ units of output during a production process that normally requires $2$ hours of labor per unit of output. The standard labor rate is $$16$ per hour, but the company paid $$15$ per hour. Actual hours needed to complete the production process were $4,600.$ How much was the labor efficiency variance? $($the answer is $3,200$ unfavorable but pls show all the work$)$