First Time Penalty: failure to pay proper estimated tax

Hello,

 

I am getting a notice from the IRS stating I didn't pay enough taxes due for the year with my quarterly estimated tax payments.  When filing with Turbotax in February I did not see any line stating a penalty amount so I am surprised to see this.  Second, I did not work a full 12 months last year so my income is actually less than prior years and what I owed in federal taxes was very high.   I am trying to understand why this might be?  Is it possible this was miscalculated?  I do have some dividends and interest income.   Do I just pay this?  Can I submit for correction or abatement?