the given below is the complete question.

You are the accountant for XYZ Enterprises, a newly established retail company. During its first month of operations, the company engaged in the following hypothetical transactions:

Investment by Owners: The owners invested $$50,000$ cash into the business in exchange for common stock.

Office Space Rental Agreement: Signed a $12-$month lease for retail space, paying the first month's rent of $$2,500$ in advance.

Purchase of Inventory: Purchased $1,000$ units of inventory at $$15$ per unit on account with terms $2/10,$ n$/30.$

Sale of Inventory $($Cash$)$: Sold $200$ units of inventory for $$60$ per unit in cash. The inventory cost per unit was $$15.$

Sale of Inventory $($On Account$)$: Sold $150$ units of inventory for $$60$ per unit on account, terms $2/10,$ n$/30.$ The inventory cost per unit was $$15.$

Purchase of Equipment: Bought equipment for $$30,000,$ paying $$15,000$ in cash and the remaining $$15,000$ on a $2-$year note payable.

Utility Expenses: Paid $$1,500$ in cash for utility bills.

Salaries Expense: Paid $$6,000$ in cash for employees' salaries.

Advertising Expense: Incurred $$1,800$ in advertising costs, paid in cash.

Collection from Accounts Receivable: Collected $$9,000$ from customers who were billed on account.

Payment to Suppliers: Paid $$14,700$ to suppliers for inventory purchased, taking advantage of the early payment discount.

Prepaid Insurance: Paid $$1,200$ for a $6-$month insurance policy.

Accrued Salaries: Recorded $$2,000$ in salaries for work done during the last week of the month, to be paid next month.

Depreciation Expense: Recorded $$500$ depreciation for the month on equipment.

Sales Return: Accepted the return of $10$ units of inventory sold on account. The inventory was originally sold at $$60$ per unit, with a cost of $$15$ per unit.

Interest Expense: Accrued interest of $$100$ on the note payable.

Inventory Write$-$down: Due to obsolescence, wrote down inventory by $$200.$

Deferred Revenue: Received $$2,000$ in advance for goods to be delivered next month.

Loan Payment: Paid $$500$ towards the principal of the note payable.

Corporate Taxes: Estimated and recorded income tax expense of $$2,000$ for the month.

the images is the trial balance, income statement and balance sheet that i did. I am getting a difference of $800.$ please let me know were i went wrong.