Everything, absolutely everything must lead to your final conclusion.
This is “rule” I was teaching my Technical Writing students as we were discussing feasibility reports.
If the information is not necessary, don’t include it. If the information is too long (charts, graphs, tables) and takes away from the final message then either remove it or put it an appendix to be looked at later, but take it out of the report.
Never let anything get in the way of your final conclusion that should lead to an action. (A feasibility report usually looks at various scenarios and makes a recommendation on the best one based on presented facts.)
We discussed creating a feasibility report on the college getting a baseball field. First we brainstormed header topics and then put them into a preliminary order. Because most people are uncomfortable with money, the students put the “Cost” section near the bottom.