At the T0 moment, the market specific to good Y us entirely occupied by three producing companies: A, B, and C, each owning 45% (A), 30% (B) and 25% (C). In the T0-T1 period, the turnover (revenue) of the three companies evolved as follows: -25% (A), + 5% (B), +40% (C), and the markets turnover (revenue) increased by 25%. Determine the Market Share (MS) and the Relative Market Share (RMS) belonging to the three companies at T0 and T1. Highlight the calculation method (with two decimals).

FIRM MSTO Turnover (7) in To-T1 MSTI RMS T1 A 45% -25% B 30% +5% C 25% +40% Marke 100% +25% t