To calculate impedance from power figures expressed in watts, one must understand the relationship between power, voltage, and current. The discussion highlights confusion stemming from unclear images and inadequate post formatting, which hinder effective communication. Participants express frustration over the lack of clarity in the original post, emphasizing the need for better presentation of information. The conversation also touches on the importance of adhering to forum guidelines to facilitate assistance. Overall, clear communication and proper formatting are essential for resolving technical inquiries effectively.