Listed below are the transactions of Chris Kawabata, D.D.S., for the month of September.

Sept. 1		Kawabata begins practice as a dentist and invests $23,810 cash.
2		Purchases dental equipment on account from Green Jacket Co. for $18,420.
4		Pays rent for office space, $752 for the month.
4		Employs a receptionist, Michael Bradley.
5		Purchases dental supplies for cash, $985.
8		Receives cash of $1,750 from patients for services performed.
10		Pays miscellaneous office expenses, $480.
14		Bills patients $7,330 for services performed.
18		Pays Green Jacket Co. on account, $4,350.
19		Withdraws $3,350 cash from the business for personal use.
20		Receives $1,060 from patients on account.
25		Bills patients $3,680 for services performed.
30		Pays the following expenses in cash: Salaries and wages $2,650; miscellaneous office expenses $98. (Record each separately.)
30		Dental supplies used during September, $350.

Record depreciation using a 5-year life on the equipment, the straight-line method, and no salvage value.

1. Prepare a trial balance

2.Create an Income statement

Also, I don't understand how to calculate depreciation?