四川省合川县第四区供销合作社从一九五三年推行“供应零售商品拨货计价实物负责制”以来,随着业务的发展,统计上商品销售的计算方法先后经过了三次改革——从最初的《计数划码》经过《盘存计销》《分类计销》到《统一计销》.简化了计算手续,大大地减轻了基层统计人员编制统计报表的负担. Since the Hechuan County No. 4 District Supply and Marketing Cooperative in Sichuan Province implemented the “Responsibility for Pricing of Retail Value-added from Retail Commodities” in 1953, with the development of business, the calculation method for the sales of goods has gone through three reforms—from The original “counting code” after “inventory planning,” “classification planning” to “unified planning,” simplifies the calculation procedures and greatly reduces the burden on grassroots statisticians in compiling statistical reports.