To compare the data Jason can use inbuilt function such as VLOOKUP, HLOOKUP.
Explanation:
Since Jason is working MS-excel spreadsheet. As he has mention cell A1 to C9 is official budget and related are stored in L1 – N19.
In MS- EXCEL has lot of inbuilt function are available such as VLOOKUP, HLOOKUP, and IF extra.
VLOOKUP: It is a inbuilt function where to use to find cell value in ranges of selected with column index. It searches value in vertical manner in ranged selected cells.
HLOOKUP: It is a inbuilt function where to use to find cell value in ranges of selected with column index. It searches value in horizontal manner in ranged selected cells.
IF: returns trued value if searched value found. It compares one to one cell values.