The following performance report for the year ended 31 March 2020 of Billy Building Company Limited was available. Budget $'000 Actual S'000 Variance $'000 52,800 61,600 8,800 Sales Less: Cost of goods sold Direct materials Direct labour Production overheads - Fixed Production overheads - Variable Gross profit Selling overheads - Fixed Selling overheads - Variable Net profit (4.800) (2,400) (8,000) (9,600) 28,000 (6,000) (7.200) 14,800 (5,760) (3.000) (8,800) (12.000) 32,040 (5,600) (8.800) 17.640 (960) (600) (800) (2.400) 4.040 400 (1.600) 2,840 Other information: The above budget figures were based on budgeted output of 60,000 units, but the actual output was 80,000 units. c. Explain the following accounting terms: i. Current assets and non-current assets; Current liabilities and non-current liabilities