Data of RIM Ltd is as follows:

Particulars	Amount
Equity Share Capital (30,000 Shares of $110 each)	3,300,000
9.2% Preference Share Capital (10000 Shares issued at $102.5 and redeemable at $ 100 after 10 years)	1,000,000
7.3% Debentures (30000 debentures issued at $ 95 and redeemable at $100after 10 years)	3,000,000

The company pays a dividend at 4.5% and has growth rate of 3.5% per year, corporate tax rate is 28%. Compute weighted average cost of capital (WACC) based on existing capital structure.