Kuparadzanisa zvinowanzosvika pakuderedza chikwereti. Kunyanya zvakananga, zvinoreva kuderedza huwandu hwehuwandu hwemari, kana kuti yakazara madhora emari, yebhadharo rinotsigirwa nemari.
Zvinogona kuitwa kana kuwedzera mari kana kutengesa zvinhu zvakadai sedzimba, mashizha, zvisungo, kupatsanurana, masangano, nezvimwewo. Chinangwa chekuregeredza ndeyekuti kazhinji kacho kuderedza dambudziko (kana kubviswa kwekuzvidira kuri kuzvidira) kana kuti kudzivisa kubhadhara ( apo kubviswa kwebasa kunoitwa semugumisiro wekuchinja kwemamiriro emari).
Kuti unzwisise ma mechanics ekuderedza, iwe unoda kunzwisisa kuti zvinhu zviri pahwendefa inofanirwa kubhadharwa nemari. Muzviitiko zvizhinji, iyo yakachengeteka mari yekuwana mari ndeyevashandi vemari kana yekodzero inokosha. Iyi ndiyo mari yakange isina chaicho uye isingabhadharwi nayo. Iwe unogonawo kutenga mari kuburikidza nekukwereta. Semuenzaniso, kutora chikwereti pane imwe imba kunokubvumira kuvharo yemutengo wekutenga, pamwe nebhangi rine zvese.
Tora mumwe munhu ane pfuma, yakadai semufananidzo wokutanga wemafuta unodhura madhora 100 000. Kana iye akabhadhara mari yose yekutengesa, kana yekodzero yakakosha, uye basa reunyanzvi rinowedzera mukukosha 10%, ivo vakagara pa $ 10 000 musati wawana pfuma.
Saizvozvowo, kana kukosha kwemufananidzo kunoderedza 10%, vanowana $ 10,000 musati yateresi kurasikirwa.
Zvino, fungidzira mutengo wekutenga wakabhadharwa 50% nehutano uye 50% chikwereti-kureva, vanoisa $ 50,000 pasi uye vakatora chikwereti chegore rimwe chete che $ 50,000 kuti vabhadhara mari yose. Kuwedzera kwakadaro kana kuderera kunokonzera kaviri kuwana kana kurasikirwa mumagumisiro emitemo, zvishoma kudhura kwemari yakweretwa.
Kana zvakatora gore kutengesa mufananidzo pane pfuma uye chikwereti chechikwereti pachikwereti chaiva 8%, ipapo kuwedzera kwemazana kwaizova 18,4% ($ 10 000 kuwana - $ 4,000 kufarira = $ 6,000 pfuma yakaenzana mu $ 50,000 kuenzanisa = .12, kana 12%). Kurasikirwa kwaizova 28% ($ 10 000 kurasikirwa + $ 4,000 mutengo wekuda = $ 14,000 kurashikirwa + $ 50,000 kukwana = $ 36,000 mari yakakwana = 28% kurasikirwa).
Ukama huno hwemasvomhu ndiyo inoita kuti huwandu huve nehunobudirira pane zvakanaka uye hunoparadza pane zvakaipa. Apo kambani kana munhu anodzinga, iri kuderedza dambudziko rekukanganisika kwemari kana zvinhu zvichienda kumaodzanyemba. Asi, zvakare kuderedza kukwidza kwezvavanogona kuwana kana zvinhu zvakanaka. Kunyange zvazvo pane imwe nguva zvinoreva kusiya zvimwe zvingawanika, kuregeredza kunotora njodzi yakawanda kubva patafura kuitira kuti chinangwa chive chekugadzirisa bhizimisi iri pasi kana kubata kufema kwako mune zvemari.
Muenzaniso wakakurumbira wokutsvaira mumakore gumi akapfuura waiva BP, plc, mafuta eBrithani uye gasi guru guru. Mushure mekudonha kwemafuta muGulf yeMexico muna 2010, iyo firisi yakatengesa mabhiriyoni emadhora emari, ichikanda hukuru hwekubata kwayo nekuderedza mari yayo. Izvi zvakabvumira kuti zvipone apo paibhadhara makumi ezviuru zvemadhora mubhadharo nemitengo.