- NSF Lube performed 465,200 ofl changes last year. It had budgeted 436,000 oll changes, averaging 12 minutes each. - Standard variable labor and support costs per oil change were as follows. - Fixed overhead costs: Annual budget $1,040,000 - Fixed overhead is applied at the rate of $2.40 per oil change. - Actual oll change costs: Dlrect of1 specialist services1 465,260 changes averaging 15, minutes at $30 per hour Varlable support staff and overheas: 0.16 lnber-hours at 516 per hour 465,200 changes Fixed overhead Required: o. Prepare a cost variance analysis for each variable cost for last year, b. Prepare a fixed overhead cost variance analysis. Required: a. Prepare a cost variance analysis for each variable cost for last year. b. Prepare a fixed overhead cost variance analysis. Complete this question by entering your answers in the tabs below. Prepare a cost variance analysis for each variable cost for last year. (Indicate the effect of each varlance by selecting "F fo favorable. 95 yffin unfavorable. If there is no effect, do not select either option.) a. Prepare a cost variance analysis for each variable cost for last year: b. Prepare a fixed overhead cost variance analysis. Complete this question by entering your answers in the tabs below. Prepare a fixed overhead cost variance analysis. (Indicate the effect of each variance by selecting "F" for favorable; "U unfavonable tang None for no effect