Impact on Net Worth

Last year, David paid down his motorcycle loan by $4,000 and his school loan by $8,000. He was also able to add $11,000 to his IRA from his checking account. David’s investment account grew by $15,000 during the year. How much did David’s net worth increase for the year?
- $12,000
- $23,000
- $27,000
- $38,000