How does this sound TDEE-20% to 30% fans?

pagoubupa

Hi! I am a 36 year old female who weighs 268 and is 5 foot 5 inches.

My BMR is 1966.
TDEE is about 2700.
-20% is about 2150.
-30% is about 1900.
Since I am so overweight, I figured I would choose a goal of about 2050.
I walk at least 30 minutes a day. Most days I walk 45 to 60 minutes.
I work out at the gym and ride a bike 20 minutes and ride the elliptical 10 minutes 3X a week.

My question is the following: Is my calorie goal of 2050 a day a good one?

I have lost 87 pounds by eating 1700 5 days a week and 1200 2 days a week with a cheat day every 2 weeks or so.
I have read the forums and TDEE seems the best choice for me.

Did I do it correctly?

Thanks for your help