Where am I going wrong on the bank reconciliation

Bank Statement Smith Company's Books Balance - April 1, 2020 $20,150 Cash balance, April 30, 2020 $17,500 Deposits & Other Additions: April 2, 2019 April Cash Receipts $ 500 April 15, 2019 750 April 1, 2019 $ 500 April 23, 2019 $2,000 April 14, 2019 $ 750 April 30, 2019 Interest earned $ 250 April 22, 2019 $2,000 Total Deposits & Other Additions $ 3,500 April 29, 2019 $4,000 Checks paid: Check # 305 $ 250 Check # 306 $ 800 Check # 308 $1,700 April Check Disbursements Check # 309 $1,400 Check # 310 $ 750 Check # 305 $ 250 Total Checks paid ($ 4,900) Check # 306 $ 800 Check # 307 $5,000 Other Deductions: Service charges $ 100 Check # 308 $1,700 EFT Bill Pay - NH Power $ 500 Check # 309 $1,400 NFS check from customer ABC Corp. $2,300 Check # 310 $ 750 Total Other Deductions ($2,900) Balance - April 30, 2020 $15,850Balance per Bank 20,150 Balance per Book 17,500 Add: Add: Deposit in transit 5,000 Note collections Interest earned 250 um Deduct= m (4,000) Service charges (100) EFT Bill (500) NFS (2,300) Book Error 21,150 Adjusted Book Balance 18,100 Adjusted Bank Balance