RT250702-N ndi soli yotonthoza yochokera ku PU yopangidwira ogula omwe akufuna njira yofewa, yosalala, komanso yothandizira tsiku ndi tsiku yokongoletsera. Mbali yake yayikulu ndi pamwamba pake ngati chikopa, zomwe zimapangitsa kuti chitonthozo, mpweya ukhale wofewa, komanso chinyezi chizilowerere poyerekeza ndi soli yokhazikika yokhala ndi nsalu. Izi zimapangitsa kuti ikhale yoyenera nsapato wamba, nsapato zovekedwa, ndi nsapato zomwe zimagwiritsidwa ntchito tsiku ndi tsiku komwe kumafunika chitonthozo ndi kukhudza kwapamwamba.

Chigoba cha thovu cha PU chimapereka chithandizo chokhazikika pa phazi lonse, zomwe zimapangitsa kuti phazi likhale lofewa komanso lolimba. Kuchuluka kwake kumakonzedwa bwino kuti lisatuluke pansi pakagwa nthawi yayitali, zomwe zimapangitsa kuti likhale lothandiza poyenda kapena kuyimirira kwa nthawi yayitali. Kusankha kwa zinthuzi kumathandizanso kutsimikizira kulimba, zomwe zimathandiza kuti chigobacho chikhalebe ndi mawonekedwe abwino komanso chigwire ntchito kwa nthawi yayitali.

Kapangidwe kake koboola m'malo ozungulira phazi ndi phazi lapakati kamathandizira kuti mpweya uziyenda bwino, zomwe zimathandiza kuchepetsa kutentha komwe kumawonjezeka komanso zimathandiza kuti mpweya uziyenda bwino mkati mwa nsapato. Kuphatikiza ndi gawo lapamwamba lokhala ndi chikopa, chidendene chamkati chimapereka mpweya wabwino komanso waukhondo, zomwe zimapangitsa kuti chikhale choyenera nyengo yotentha komanso mitundu ya nsapato zotsekedwa.

Pansi pa chidendene cha nsapato muli kapangidwe kolimba komwe kamathandiza kukhazikika kwa chidendene cha nsapato mkati mwa nsapato. Izi zimatsimikizira kuti phazi limakhala lokhazikika komanso limachepetsa mwayi wosuntha panthawi yoyenda, zomwe zimathandiza kwambiri nsapato zantchito kapena nsapato za tsiku ndi tsiku zomwe zimagwiritsidwa ntchito kwa maola ambiri.