How to calculate how much profit advertising can bring?

Theoretically speaking, the actual income of advertising can't be calculated, because the 100% income of the market doesn't rely solely on advertising. However, it is still feasible to predict and evaluate the actual market value of advertisements according to market objectives and established promotion plans, and then judge whether advertisements have the value of delivery. 65438+ 6. Analyze and explain the pertinence, repeatability and originality of advertisements, and prove the possibility of the above logic in theory. Note: The unprofessional suggestions of non-advertising and statistics professionals are for reference only, and the emphasis is on participation!