<prompt> Translate the following text to EnglishOngezeko au kupungua kwa gharama za jumla ambazo zitatokana na uamuzi wa kuongeza au kupunguza kiwango cha pato, kuongeza huduma au kazi, au kubadilisha sehemu yoyote ya shughuli.  <response>: INCREMENTAL COST - The increase or decrease in total costs that would result from a decision to increase or decrease output level, to add a service or task, or to change any portion of operations. 