The policy is designed to protect loss of earnings and it is important to adjust Business Interruption values at each renewal.
The following formula will be of help in calculating appropriate values for the forthcoming year.
Estimated Sales ($)
Less ( - ) Purchases (Cost of goods $) Equals ( = ) Insurable Gross Profit
OR
Gross Rental Income for next 12 months (including special outgoings $)
All changes or inclusions of any sort or type, including limits or sums insured shown, will take effect from the policy's expiry date unless you request otherwise.