Complete the following table, indicating the amount and effect (+ for increase, for decrease, and NE for no effect) of each transaction. Ignore income taxes. from pr3evious question posted

Fraud Investigators Inc. operates a fraud detection service.

a.	On March 31, 10 customers were billed for detection services totaling $16,000.
b.	On October 31, a customer balance of $1,050 from a prior year was determined to be uncollectible and was written off.
c.	On December 15, a customer paid an old balance of $710, which had been written off in a prior year.
d.	On December 31, $410 of bad debts were estimated and recorded for the year.