APMBCG matrix calculations

Let’s say that market size is 100, 120 and 140 in three successive years. ou have a choice as to how to estimate growth rate: Last two years only: 120(1 +g) = 140 140/120 = 1.167 , g = 0.167 or 16.7% Or all three years 100 x (1+ g)(1 + g) = 140 (1 +g)(1 + g) = 140/100 = 1.4 1+g = Square root(1.40) = 1.183 g = 0.183 = 18.3% The second method takes more years into account so might give a better estimate of market growth rate. However, the first method takes only the latest years into account so might give a more up-do date growth rate. I found this reply by GROMIT given last year to a similar question. Thank you Gromit!

Im using Kaplan and trying to figure out how they have calculated market growth, share and relative market share for the BCG matrix. Please can someone explain to me. the above query has helped me to arrive at the market growth. However, i am unable to answer the remaining two aspects. Please can you help. Thankyou. Food For Thought (FFT) has been established for over 20 years and has a wide range of food products. The organisation has four divisions: (1) Premier (2) Organic (3) Baby (4) Convenience The Premier division manufactures a range of very high quality food products, which are sold to a leading supermarket, with stores in every major city in the country. Due to the specialist nature of the ingredients these products have a very short life cycle. The Organic division manufactures a narrow range of food products for a well-established Organic brand label. The Baby division manufactures specialist foods for infants, which are sold to the largest UK Baby retail store. The Convenience division manufactures low fat ready-made meals for the local council. The following revenue data has been gathered: Year ending 31st March: $m 20X3 20X4 20X5 20X6 20X7 Premier Market size 180 210 260 275 310 Sales revenue 10 12 18 25 30 Organic Market size 18.9 19.3 19.6 19.8 20.4 Sales revenue 13.5 14 14.5 15 16 Baby Market size 65 69 78 92 96 Sales revenue 2.5 2.7 2.8 2.9 3 Convenience Market size 26 27.2 27.6 28 29 Sales revenue 0.9 0.9 0.92 0.94 0.9 The management accountant has also collected the following information for 20X7 for comparison purposes. Market leader % share Premier Organic Baby Convenience 17% 78% 25% 31% Required: Using the BCG matrix assess the competitive position of Food For Thought.

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Can you please help in understanding how to calculate market growth rate