我在excel中有一组数据,如下所示:
Project Name alpha date alpha price beta date beta price final date final price
Project a 1/01/2013 $123.00 2/02/2013 $324.00 5/02/2013 $222.00
Project b 2/01/2013 $432.00 9/03/2013 $111.00 30/03/2013 $321.00
project c 2/02/2013 $4,431.00 8/03/2013 $231.00 7/04/2013 $343.00
project d 3/04/2013 $1,232.00 30/01/1906 $3,122.00 6/07/2013 $666.00
我需要为项目的所有项目和阶段的每个月/年生成一个总和。IE:
Jan 2013 $555
Feb 2013 $4,977
解决这个问题的最佳方法是什么?