How Much Blood is Required to Run 1kg of BodyFat

I'd like to know this because as my bodyfat is reducing, my heart rate is dropping. It must be that my heart has less day to day work to do in order to keep house.

All I can find so far is this:

Assuming a male of 6ft 600lb- approximately 22L of blood. 175lb- approximately 8.5L of blood.

Females would have less blood than males.

This was calculated using Nadler's Formula:

For Males = 0.3669 * Ht in metres^3 + 0.03219 * Wt in kgs + 0.6041
For Females = 0.3561 * Ht in metres^3 + 0.03308 x Wt in kgs + 0.1833