Summary of the Retranslocation Algorithm Outputs:

Outputs of Retranslocation Algorithm:
- Retranslocated N (Nretrans, gN m-2)
- Carbon spent on retranslocation (Cretrans_paid, gC m-2) 
- Carbon accounted for by retranslocation (Cretrans_accounted, gC m-2)

Calculations:
1. Total carbon spent on retranslocation (Cretrans,spent):
   - Calculated as the sum of Cretrans,i

2. Total N acquired from retranslocation (Nretrans):
   - Nretrans = Nretrans,paid + Nretrans,free
   - Nretrans,paid = sum of Nretrans,paid,i

3. Total carbon accounted for by retranslocation (Cretrans,accounted):
   - Calculated as the sum of Cretrans,accounted,i and Nretrans,free * CNplant * (1.0 + grfrac)

4. Total available carbon in FUN to spend on fixation and active uptake (Ctospend, gC m-2):
   - Ctospend = Cavail - Cretrans,accounted

This summary highlights the key output variables and the equations used to calculate them within the retranslocation algorithm.