5. Calculation of the cost-of-capital rate


Taking into account parameters obtained in the preceding points, the cost-of-capital rate for the 2015 financial year was calculated, by applying the pre-tax weighted average cost of capital1, having been obtained the rate of 9.3247% (vide table 9).

Table 9 - Cost-of-capital rate for 2015

Parameters

2015

Risk-Free Interest Rate

2.42%

Risk Premium

2.12%

Beta

0.744

Gearing

9.00%

Debt Premium

42.97%

Tax Rate

29.50%

Cost of equity

9.12%

Pre-tax WACC

9.3247%

Source: ANACOM calculation and Mazars Report

Notes
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1 Pre-tax weighted average cost of capital (pre-tax WACC): CMPC_(pre-tax)= [Ke × (1-G)+Kd×G×(1-ti)]× 1/((1-ti)).