Result = round(Complexity + Complexity × k × versions)
k ∈ {0 / 0.08 / 0.20 / 0.40} for iteration levels 0 / 1 / 2 / 3
round(0 + 0) = 0
Ex — base points per item.
Fin — item contribution: Main → Fin=Ex, otherwise Fin=Ex×Fin%.
Complexity = sum of Fin. Volume = Complexity × k × versions.
Result = round(Complexity + Volume).