I have a client attempting this credit. The performance period for the client is only 3 months but the spreadsheet wants a whole year of "Sustainable Costs" in order to compare it with an average of past years' cost. This makes sense, to compare apples to apples you need years and years. But we just don't have a year of "Sustainable Costs" data to submit. Could we take the 3 month number sand multiply it by 4 to get the whole year? Would we want to explain this with some narrative?

A little confused on how to proceed. Any help would be greatly appreciated!