Compute the controllable variance. PLEASE HELP ME!!!

Kenshaw Company's flexible overhead budget at an activity level of 1,000 units shows $10,000 in variable overhead costs and $5,000 in fixed overhead costs. Actual total overhead is $13,000. Compute the controllable variance. (Indicate the effect of the variance by selecting favorable, unfavorable, or no variance.) Controllable Variance Actual total overhead Budgeted (flexible) overhead at units produced Controllable variance Favorable