<prompt> Translate the following text to EnglishVituo vya uwajibikaji vinaweza kupimwa kama vituo vya mapato wajibikaji kwa mapato au mauzo tu, vituo vya gharama wajibikaji kwa gharama na gharama tu, vituo vya faida wajibikaji kwa mapato na gharama, au vituo vya uwekezaji wajibikaji kwa uwekezaji, mapato na gharama.  <response>: Responsibility centers can be measured as revenue centers accountable for revenuesales only, cost centers accountable for costsexpenses only, profit centers accountable for revenues and costs, or investment centers accountable for investments, revenues, and costs. 