When looking at financials, you are seeing how potential donors are seeing an organization. You can also compare your organization's finances to others, either by looking up their tax documents or by comparing to national averages.
Because of their status as non-profits, organizations are required to submit Form 990 or Form 990 EZ with the government, unless they make less than $50,000 per year, in which case they file a Form 990-N. Non-profits must make the last three years of this form publicly available. Form 990 includes information about an organization's mission, programs, and finances.
While not necessarily required, nonprofit organizations are strongly encouraged to make their audited financial statements publicly available through their website.