<prompt> Translate the following text to EnglishPia, faida na hasara katika ustawi, ufanisi wa kiufundi, na faida zitaelezwa katika mamilioni ya dola, ingawa grafu fulani zinaweza kurejelea kwa mabilioni.  <response>: Also, gains and losses in welfare, technical efficiency, and profits will be referenced in millions of dollars, although certain graphs may refer to them in billions. 