Conduct a cost analysis for Tesla Inc. by categorizing its expenses for the year 2023:

Expense Category	Amount ($)
Cost of Goods Sold	2,500,000
Research & Development	1,200,000
Selling, General, & Administrative Expenses	800,000
Depreciation & Amortization	500,000
Interest Expense	300,000

Compute the total expenses and express each category as a percentage of the total.