(a) Calculate the missing amounts. ConcordLtd. $88,100 RiverbedLte $98,800 Sales Cost of goods sold 59,027 59280 Gross profit 29073 39,520 Operating expenses 19,700 Income from operations 18,000 Other income 780 0 Other expenses 0 2,000 Income before income tax Income tax expense 2,224 Net income 12,844