Campbell Corporation, an accrual basis calendar year corporation, had income of $450,000 for financial statement purposes in year 7. This amount included book depreciation of $50,000. The related tax depreciation was $65,000. Further, the financial statements reported $100,000 of municipal bond interest income, an expense of $2,000 for life insurance premiums on the corporations president, charitable contributions of $5,000, excess capital losses over capital gains of $3,000, income tax penalties of $10,000, state income tax of $40,000, and Federal income tax expense of $175,000. What is the amount of Campbells taxable income for year 7?

1. $522,000

2. $525,000

3. $530,000

4. $565,000

The answer is $525,000, I just don't know how to work it out.