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  Expense Categories	Amount (USD)
  Research and Development Costs	$200,000
  Employee Benefits	$250,000
  Charitable Contributions	$40,000
  Depreciation	$150,000
  ______________________________
  Total Deductions	$640,000

  Requirements:

  1. Determine the total deductions for a corporation, including research and development costs, employee benefits, charitable contributions, and depreciation expenses.
  2. Calculate the total deductions amount.
  3. Present all amounts in USD.
  4. Highlight the key expense categories.