解释房产、厂房、设备折旧如何体现了配比原则？

Explain how depreciating PP&E is an example of the matching principle.

解释房产、厂房、设备折旧如何体现了配比原则?

Explain how depreciating PP & E is an example of the matching principle.

固定成本包括设备折旧、利息费用、税金，以及一般营业费用，等等。 总固定成本是各项固定成本之和。

Hi, I am clueless as to how to calculate BEP when other operating expenses such as interest are involved.