Orie and Jane, husband and wife, operate a sole proprietorship. They expect their taxable income next year to be $450,000, of which $250,000 is attributed to the sole proprietorship. Orie and Jane are contemplating incorporating their sole proprietorship. (Use the tax rate schedule.) a. Using the married-joint tax brackets and the corporate tax rate, find out how much current tax this strategy could save Orie and Jane. (Do not round your intermediate calculations. Round your final answer to two decimal places.) Current tax saved b. How much income should be left in the corporation? Income left