There are certain parameters that determine how business interruption insurance is calculated. To begin with, the cost of moving is calculated. Some businesses will be able to temporarily move their premises during the reinstatement period. Additional costs incurred here will have to be considered. Additionally, any expected saved expenses should be included. Some businesses may not be able to operate normally after the premises are reinstated. In such situations, it is very important to calculate any savings that may come up such as building services, maintenance, utility bills among others.