Fat burn rate

Estimates the rate of fat burnt during an activity - calculate weight loss. If you appreciate my work, please tip me at http://www.paypal.me/LiborOnTrails Based on the caloric output from Garmin's Firstbeat algorithm and the percentage of fat / carbs burn rate depending on the user's current personal heart rate zone. Zone 1,2: 85% fat, 10% carbs; Zone 3: 50% fat, 50% carbs; Zone 4: 15% fat, 85% carbs; Zone 5: 10% fat, 90% carbs. For an ALL-IN-ONE DataField go to https://apps.garmin.com/apps/ca021006-028b-430c-8633-84b7aa070c35

v1.0.2 make calculation more efficient