The following transactions occurred during 2016.

1. Issued shares to investors for cash.
2. Provided services to customers, receiving part in cash and the rest on credit.
3. Incurred advertising expense, paid in cash.

4.Collected cash from accounts receivable.
5. Repaid a bank loan.
6. Purchased equipment on credit.
7. Bought inventory for cash.
8. Sold goods on credit (COGS equals 60 per cent of sales).
9. Paid wages expense for the period.
10. Received a loan from the bank.
11. Incurred maintenance expense, paid cash.
12. Declared and paid a cash dividend to investors.
For each of the transactions, indicate the effect (+ for increase and — for decrease) of each transaction on revenues, expenses and net profit. Write NE if there is no effect.