Nneɛma bo a ɛkɔ soro no yɛ n’ade te sɛ tow a wɔbɔ wɔ sika a ɛyɛ nsu mu a ɛyɛ komm na ɛyɛ kɛse. Sɛ nneɛma ne nnwuma a wɔde di dwuma da biara da bo kɔ soro a, sika ankorankoro biara hwere tumi a ɛwɔ sɛ ebenya saa agyapade koro no ara pɛpɛɛpɛ. Sɛ mpo sika a wɔfrɛ no sika a ɛwɔ sikakorabea akontaabu mu no da so ara yɛ nea wɔahyɛ da ayɛ a, tumi a wɔde tɔ nneɛma wɔ bere ankasa mu no so tew kɛse.
Saa mfaso yi de standard compounding discounting models di dwuma de bu bere ankasa mu degradation of capital. Algorithm a ɛwɔ aseɛ no hwehwɛ akontabuo nhyehyɛeɛ no mu: Boɔ Ankasa = Dodow a Wɔde Di Dwuma / (1 + Inflation Rate)^Mfeɛ. Ɛdenam saa bere pii mu sika a wɔatew so dodow yi a wɔde di dwuma wɔ afɛfo afã yi so no, script no tew bo a wɔhwere nyinaa fi hɔ ntɛm ara a wɔmfa sikasɛm mu nsɛm a wɔde bɛkɔ ɔmanfo ntam nkitahodi ahorow so no nni dwuma, na ɛma adwumayɛ mu data ahobammɔ gyinapɛn a emu yɛ den di ho dwuma.
Sɛnea ɛbɛyɛ a wɔbɛbɔ bere tenten a wɔde asie no ho ban afi nneɛma bo a ɛkɔ soro ho no, sikasɛm adwumayɛfo taa kyekyɛ sika kɛse fi sika a wɔde asie a ɛnyɛ nea ɛma mfaso kɔ agyapade nhyehyɛe ahorow a ɛsow aba mu. Eyinom bi ne gua a ɛtrɛw mu sika a wɔde di dwuma ho nkyerɛkyerɛmu, sikakorabea ahorow a wɔabɔ ho ban afi sikakorabea, anaasɛ honam fam agyapade a wotumi hu a wɔayɛ sɛnea ɛbɛyɛ a ɛne sikasɛm mu nneɛma a wɔde di dwuma kɛse ho nkyerɛkyerɛmu bɛkɔ so ayɛ pɛ.