Kenshaw Company's flexible overhead budget at an activity level of 1,000 units shows \\( \\$ 11,400 \\) in variable overhead costs and \\( \\$ 6,400 \\) in fixed overhead costs. Actual total overhead is \\( \\$ 14,400 \\). Compute the controllable variance. (Indicate the effect of the variance by selecting favorable, unfavorable, or no variance.)