help me plz

Question 3: Sunlight Ltd, produces house frames from aluminum composite. In December 2020, the budget and performance of Sunlight are as follows: Budget Actual performance Sales Selling price VND 10,000,000/house frame VND 9,600,000/house frame Sales volume 300 frames 280 frames Fixed overheads VND 210 million VND 200 million Variable costs 300 frames * (50kg of 320 frames* (56 kg of Raw materials costs aluminum/frame) (VND aluminum/frame) * (VND 100,000/kg) 92,000/kg) 300 frames (10hours/frame) 320 frames (12hours/frame)* Direct labor costs (VND 120,000/hour) (VND 110,000/hour) Variable overheads VND 360 million VND 400 million Required: i) Calculate the profit variance for Sunlight Ltd. in December 2020 ii) Break down the profit variance calculated into different related variances iii) If Sunlight Ltd. specifies 10% of budget is a threshold for adverse (unfavorable) variance, specify which variances should be analyzed? Provide some possible reasons for such variances