Excel:一列的总和，但对总和之前的每个单元格应用函数 [英] Excel: sum of a column, but apply a function to each cell before sum

问题描述

我有一个基本的Excel电子表格，如下所示:

I have a basic excel spreadsheet like this:

A           B           C          D       etc..
10%         219.10      34.2       6.4     etc..
6%          45.10       36.2       7.4     etc..
4%          419.10      54.2       9.4     etc..
Totals:     [SUM]       [SUM]      [SUM]   ( -- update - need totals here -- )

我想对B，C和D列中的所有值求和.在执行sum()之前，每个单元格值都必须与A列中的％相乘

I would like to sum all the values in column B, C and D. Each cell value needs to be multiplied by the % in column A before doing the sum()

我可以手动创建一个新列以包含％计算，然后对该列求和，但是我希望在没有附加列的情况下进行操作.

I could manually create a new column to contain the % calculation, and sum that column up, but I'm hoping to do it without the additional column.

我发现了这我认为这是正确的，但是在实现它方面有些失落.

I found this which I think is on the right track but am a little lost at implementing it.

(计划将此计算结果写入到基于简单mysql数据库中的值的php脚本创建的excel电子表格中)

(planning to write this calculation to an excel spreadsheet created from a php script based on values in a simple mysql database)

推荐答案

编辑

对于更新后的问题，您所需要的只是(在B5中)

EDIT

For the updated question, all you need is (in B5)

=SUMPRODUCT(B2:B4 * $A2:$A4)

复制到右侧

---

对于E2，使用

---

For E2, use

=SUMPRODUCT(B2:D2 * $A2)

这表示B2 * A2 + C2 * A2 + D2 * A2.

This means B2*A2 + C2*A2 + D2*A2.

但是，您知道吗，从数学上讲，它与

But, did you know that mathematically speaking, it is the same as

  B2*A2 + C2*A2 + D2*A2
= A2 * (B2+C2+D2)

下面是哪个?

=A2*SUM(B2:D2)

查看您的等，如果需要向右扩展，只需将A列锁定在SUMPRODUCT中，或使用SUM.以下示例最多可包含J

Looking at your etc, if you need to expand it rightwards, just keep column A locked in SUMPRODUCT, or use the SUM. Example below for up to J

=SUMPRODUCT(B2:J2 * $A2)
=A2*SUM(B2:J2)

然后抄下来.

这篇关于Excel:一列的总和，但对总和之前的每个单元格应用函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！