W4 question

I am retired and currently receive a retirement pension of about 4000/mo. Starting this year (in Jan) is am receiving SS of about 800/mo.

I am working a small side job where I make about 10000/yr. Because of this amount, my employer did not take out federal taxes.

when I did my taxes, I owe about 1100. When I asked my employer to start taking out taxes, I was told to change my w4.

 

How should I change my w4 some break even (or close to it) next year?