同比计算公式,同比增长率

同比计算公式,同比增长率select a qy name as qy name a bj cl as now bj cl a bj xl as now bj xl b bj cl as last bj cl b bj xl as last bj xl a bj cl b bj cl 1 100 as cl tb a bj xl b

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select a.qy_name as qy_name, a.bj_cl as now_bj_cl,a.bj_xl as now_bj_xl, b.bj_cl as last_bj_cl,b.bj_xl as last_bj_xl, (a.bj_cl/b.bj_cl-1)*100 as cl_tb, (a.bj_xl/b.bj_xl-1)*100 as xl_tb from ( select b.year as year,b.month as month , a.typeId as typeId,a.`typeName` as typeName ,b.qy_name as qy_name , sum(`bj_cl`) as bj_cl, sum(`bj_xl`) as bj_xl from `phpcms_form_qysj_zfyg_tree` a ,`phpcms_form_qysj_zfyg_data` b where a.typeId=b.`product_code` AND `year` like '%2008%' AND `month` like '%%' AND `totalType` like '%膏%' group by qy_name order by typeName asc ) a , (select b.year as year,b.month as month , a.typeId as typeId,a.`typeName` as typeName ,b.qy_name as qy_name , sum(`bj_cl`) as bj_cl, sum(`bj_xl`) as bj_xl from `phpcms_form_qysj_zfyg_tree` a ,`phpcms_form_qysj_zfyg_data` b where a.typeId=b.`product_code` AND `year` like '%2007%' AND `month` like '%%' AND `totalType` like '%膏%' group by qy_name order by typeName asc ) b where a.qy_name=b.qy_name 

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讯享网06年比05年增长=(06-05)/05*100%
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同比增长率


  同比增长率,一般是指和去年同期相比较的增长率。   某个指标的同期比=(本年的某个指标的值-去年同期这个指标的值)/去年同期这个指标的值   一、市场价格分析计算公式   (一)本期环比增长(下降)率计算公式   根据批发市场价格分析需要,环比分为日环比、周环比、月环比和年环比。    本期环比增长(下降)率(%)=[(本期价格/上期价格)-1]*100%   说明:(1)如果计算值为正值(+),则称增长率;如果计算值为负值(-),则称下降率。   (2)如果本期指本日、本周、本月和本年,则上期相应指上日、上周、上月和上年。   (二)本期同比增长(下降)率计算公式    本期同比增长(下降)率(%)=[(本期价格/上年同期价格)-1]*100%   说明:(1)如果计算值为正值(+),则称增长率;如果计算值为负值(-),则称下降率。   (2)如果本期指本日、本周和本月,则上年同期相应指上年同日、上年同周和上年同月。
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