计算不同级别的收入份额 [英] Calculating revenue share at different tiers

问题描述

我正在尝试编写一个可以计算不同层级收入的函数...例如，您卖出了价值10000美元的小部件.从$ 1-$ 999的任何收益中，我们占50％，从$ 1000-$ 4999的任何收益中，我们占25％，从$ 5000-$ 9999的收益中，我们占10％，$ 10000-$ 19999.

I'm trying to write a function that can calculate revenue at different tiered levels... For example you sell $10000 worth of widgets. Any earnings from $1 - $999 we take 50%, $1000 - $4999 we take 25%, $5000 - $9999 we take 10%, $10000 - $19999 5%.

不基于最终值获取百分比.因此，如果您赚了10000美元，您不仅会跌入10％的列.您的前$ 1000需加收50％，接下来的$ 5000需加收25％，接下来的$ 4000需加收10％.

The percentage is not taken based on the final value. So if you earned $10000 you don't just fall into the 10% column. Your first $1000 is subject to 50%, the next $5000 25%, the next $4000 10%.

谢谢.

**最终工作代码.感谢您的帮助！

**Final working code. Thanks for the help!

    $input = 10000;

    $tiers = array('1000' => .5, '5000' => .25, '10000' => .1, '20000' => .05, '22000' => .01);

    $accounted_for = 0;
    $total_share = 0;

    $tier = each($tiers);
    while($accounted_for < $input) {

        $cutoff = $tier[0];
        $percent = $tier[1];

        $level = (min($cutoff, $input) - $accounted_for) * $percent;

        $total_share += $level;

        $accounted_for = $cutoff;

        $tier = each($tiers);
    }

    return $total_share;

推荐答案

由于您尚未指定语言，因此这里有一些伪代码:

Since you haven't specified a language, here's some pseudocode:

input = 99999

tiers = [list of (%,cutoff) tuples]

accounted_for = 0
total_share = 0

while accounted_for is less than input:
    percent,cutoff = next element of tiers
    total_share += (min(cutoff,input) - accounted_for) * percent
    accounted_for = cutoff

return total_share

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