The guide needs to be reconsidered due to the changes to plasma technology.
Btw there are new tools:
o-calc.com/index.php?sec=_amortisation and
o-calc.com/index.php?sec=_amortisation_simple
Btw there are new tools:
o-calc.com/index.php?sec=_amortisation and
o-calc.com/index.php?sec=_amortisation_simple