Gordon Company is estimating an optimal capital structure for a new project. The current cost of financing is as follows:

Source	Weight	Range (RM)	Before/After Tax Cost (%)
Bond	40	0-500,000	Before tax cost = 5.00
		Above 500,000	Before tax cost = 8.00
Preferred Share	20	0-700,000	10.00
		Above 700,000	13.00
Common Share	40	0-1,000,000	18.00
		Above 1,000,000	20.00

Assume tax cost of 35%, you are required to answer the following: i) Calculate the after-tax cost for bond

ii) Calculate breaking points for preferred share iii) Determine the firms weighted cost of capital