計算與去年同期比就是用今年經(jīng)濟(jì)數(shù)據(jù)減去去年同期經(jīng)濟(jì)數(shù)據(jù)/去年同期經(jīng)濟(jì)數(shù)據(jù)100%。計算同期比就是得出同比增長率，能直觀表現(xiàn)出經(jīng)濟(jì)規(guī)模的發(fā)展速度，可以消除季節(jié)之類...