The note shall be factual in nature, as brief and concise as may be, and shall provide as reliable an estimate, in terms of population and dollar impact, as is possible under the circumstances. The note shall include both the immediate effect, and if determinable or reasonably foreseeable, the long-range effect of the measure.
If, after careful investigation, it is determined that no population or dollar estimate is possible, the note shall contain a statement to that effect, setting forth the reasons why no such estimate can be given. A brief summary or work sheet of computations used in arriving at the Budget and Impact Note figures shall be supplied.
25 ILCS 70/5