例如，如果一个生产产生了了200个单位，那么总成本可以通过应用下面公式200次得到(从1到200)然后把这200个数值相加。

For example, If a production run has generated 200 units, the total cost can be derived by taking the equation below and applying it 200 times (for units 1 to 200) and then summing the 200 values.

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第2步：为每一次过程改进机会技术节省成本的设计一致性以及合理的公式。

Step 2: Devise coherent, plausible formulas for calculating a cost savings for each process improvement opportunity.

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虽然能直接明了地套用公式，但仍需要细化工作：拿既有产品的收入减去维护客户所需的成本。

The formula is straightforward but needs to be detailed: Take a given product's revenue and subtract what it costs to bring it to the customer.

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