Different sites = different nutrition information

wormy80

Hello,
I am new to this site and still have a lot to learn. I am making an old recipe tonight and tried to calculate the nutritional information on here the best I could. I am also a member on another website and I did the same recipe on there (since I find some of their tools a little eaiser to work with.) The problem is I got two pretty significantly different results...the calories were over 150 apart. I did check and recheck and keep getting this same information, I'm not sure what I'm doing wrong to be honest.

Do you always just do your best to calcuate nutrition on this website and stick with that regardless? Just looking for input here. Thanks.