The large number on the temperature page is the temperature of the category. In the picture below, the temperature of the category Team Spirit is 8.3.
The index number is derived from all answers within Winningtemp users or users in your industry or organisation (depending on your setting). The picture below compares the index with an industry index of 8.1.
When you hover over the circle's edge, you can see how the responses are divided in this category. In the example below, 97 users gave 259 answers with the happiest smiley (green smiley).
The orange arrow pointing down means that we currently have a negative trend of -2% in the Team spirit category.