The machine that was used to produce notebooks cost $750,000 when it was purchased new one year ago. It has an expected life span of 10 years. The income statement showed the straight line deprecation rate as 10%.

Using double declining balance depreciation, the book value of the machine at the end of year two is __________.

a.)$330,000

b.)$480,000

c.)$600,000

d.)$150,000