complete simple calculations of costs in given situations

the calculation of revenue, gross profit, gross profit margin, profit for the year (net profit), working capital and mark-up percentage 1 Revenue (Sales or Turnover) = Selling price per unit × Number of units sold 2 Gross profit = Revenue – Cost of Sales (the cost of purchasing inventory) 3 Gross profit margin (%) = Gross profit ÷ Revenue × 100 4 Net profit/net loss for the year = Gross profit – Expenses 5 Working capital = Current assets – Current liabilities 6 Mark-up percentage = (Average Selling Price – Unit Cost) ÷ Unit Cost