同比怎么計(jì)算
同比指的是本期統(tǒng)計(jì)數(shù)據(jù)與去年同期統(tǒng)計(jì)數(shù)據(jù)相比較,其計(jì)算公式為:同比=本期統(tǒng)計(jì)周期數(shù)據(jù)÷去年同期統(tǒng)計(jì)周期數(shù)據(jù)×100%;同比增長=(本期統(tǒng)計(jì)周期數(shù)據(jù)-去年同期統(tǒng)計(jì)周期數(shù)據(jù))÷去年同期統(tǒng)計(jì)周期數(shù)據(jù)×100%。