Every macro calc says something different

Hi. Newbie here...9 days in and would love some advice. Every calc I use gives me different macros. I know I can adjust them. My issue is w the daily calorie. With a 20% deficit, the calories can differ from 200-300 daily. Which is a big difference. I’m down 3 lb. so seems a little slow. But I know any loss is good and everyone loses at a different rate.  But would love to hear opinions.