This makes the total cost of the bulb and energy $27.

这使得灯泡和电量的总耗费升为$27。

I estimate that total cost for treatment will go from $9,000 to $12,500.

我估计治疗费总额将在9千美元到1.25万美元之间。

Can you figure the total cost out?

你能把全部成本算出来吗？

Total cost in a period of time

某一时间段内的总成本

Estimated total cost to complete.

估计的要完成的总成本。