Please help me solve this. Thanks. Highlight the answers w explanations please.

Zachary Manufacturing Company established the following standard price and cost data Sales price Variable manufacturing cost Fixed manufacturing cost Fixed selling and administrative cost 8.70 per unit $ 3.30 per unit $2,000 total $ 900 total Zachary planned to produce and sell 2,400 units. Actual production and sales amounted to 2,700 units. Assume that the actual sales price is $8.50 per unit and that the actual variable cost is $3.60 per unit. The actual fixed manufacturing cost is $1,400, and the actual selling and administrative costs are $920 Required a.&b. Determine the flexible budget variances and classify the effect of each variance by selecting favorable (F) or unfavorable (U) (Select "None" if there is no effect (i.e., zero variance).) Flexible Budget Variances Sales Variable manufacturing Contribution margin Fixed manufacturing Fixed selling and administrative cost Net income (loss)