Final answer:
Mr. Deming insisted on seeing #'s, $'s, ratios, and %'s because they are relevant and necessary for factual planning.
Step-by-step explanation:
Mr. Deming insisted on seeing #'s, $'s, ratios, and %'s because they are relevant and necessary for factual planning. These numerical representations provide concrete data that can be analyzed and compared to make informed decisions. For example, ratios and percentages can help identify trends and patterns that can guide financial planning and budgeting. Additionally, numbers allow for quantitative evaluation, which is important for assessing the feasibility and effectiveness of different strategies.