Heres what I got but its marked wrong?

8,080 and 2,020 is whats marked wrong so I have some type of calculation error.

Exercise 5-3A Record credit sale and cash collection with a sales discount (LO5-1, 5-2) On March 12, Medical Waste Services provides services on account to Grace Hospital for $10,100, terms 2/10, 1/30. Grace pays for those services on March 20. Required: For Medical Waste Services, record the service on account on March 12 and the collection of cash on March 20. (If no entry is required for a particular transaction/event, select "No Journal Entry Required" in the first account field.) View transaction list View journal entry worksheet No Date General Journal Credit Debit 10,100 March 12 Accounts Receivable Service Revenue 10.100 March 20 Cash 8,080 2020 Sales Discounts Accounts Receivable 10.100