Tdee calculation

HEY GUYS,

I WAS DOING THE MATHS FOR MY TDEE ON BOTH LINKS THAT I GOT ON THIS SITE ... DOING THE MATH ON BOTH WITH THE SAME PARAMETERS GIVES ME AN OFF OF LIKE 500 CALORIES

OUT OF THIS LINK I HAVE THAT:
http://forums.steroid.com/anabolic-steroids-questions-answers/541167-my-first-cycle-planning-executing-successful-first-cycle.html


"200 x 0.15 = 30. So 30 lbs is how much fat you carry.

200 - 30 = 170. So 170 lbs is how much lean mass you have. AKA your LBM.

170 x 15 = 2550 <~ Your estimated TDEE."

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AND OUT OF THIS LINK I GOT THAT:
http://forums.steroid.com/nutrition-resource-forum/483452-tdee-total-daily-energy-expenditure.html

Step 1
Calculate your BMR (basal metabolic rate):

Men: BMR = 66 + (13.7 x weight in kg) + (5 x height in cm) - (6.8 x age in years)

Women: BMR = 655 + (9.6 x weight in kg) + (1.8 x height in cm) - (4.7 x age in years)

Remember 1 inch = 2.54cm and 2.2 lbs = 1 kg.

Step 2
Calculate your TDEE (total daily energy expenditure). This will tell you the average number of calories you burn based on your BMR and your daily activity level.

Sedentary = BMR X 1.2 (little or no exercise and a desk or still standing job)
Lightly active = BMR X 1.375 (light exercise or sports one to three times per week)
Moderately active = BMR X 1.55 (moderate exercise or sports three to five times per week)
Very active = BMR X 1.725 (hard exercise or sports six to seven times per week)
Extremely active = BMR X 1.9 (hard daily exercise or sports and a physical job, or twice a day training for an athletic event such as for a marathon or intense competition)



Im pretty sure the second type of calculation is more accurate. it looks like it. I GET 2868 CALORIES ON THE FIRST LINK AND 3356 ON THE SECOND LINK

Am i better of with the second one ?

THANKS