This indicator is based upon the Material Circularity Index and is a simplified version of MCI focusing on material and energy circularity.
INPUT
The values needed to calculate this index are the total amount of feedstock in the production system of a product and the amount of recycled, recovered, or reused feedstock.
OUTPUT
The value will give the percentage of circularity in the system, which tells how circular materials and energy are in a product’s supply chain.
FORMULA
F= C/T x 100%
where
F= circularity of raw material
C= circulated feedstock in the system
T = total feedstock in the system
Similar formula can be applied to calculate the circularity of energy (heat, cold, or electricity) in the system.
F= R/T x 100%
where
F= circularity of energy
R= reused energy in the system (Here renewable or waste to energy)
T= total energy feed to the system
ADDITIONAL INFORMATION
The source of the paper can be found here CI ZORE