For the following transaction for Tian Company in 2018, state whether the total effect of the transaction results in an increase, decrease, or has no effect on Tian Company's assets, liabilities, equity, and net income. To get credit, you must write I for "increase", or D for "decrease". If it has no effect write N. Tian Company wrote off an account receivable of $1000. Prior to the write-off, the allowance for doubtful accounts had a credit balance of $1500. Assets Liabilities Equity Net Income