[FIX] P3: graph: correct P3 migration errors
[FIX] P3: graph: correct P3 migration errors

- leftover real division errors
- typos in migration of values() calls in
  fffaf735f58f1ac57781c095eb552de6d1fcdc47

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo