The Net Loss is the sum of the keyword positions which went down. 

For example, if you have one keyword that went down 3 positions, one that went down 4 positions and one that went down 2 positions, you would have a Net Loss of 9. The calculation is: 3 + 4 + 2 = 9.

Note: If the website didn't rank for a keyword on a previous comparison date, but now it ranks for that keyword, the Net Gain is calculated this way: search depth (expressed as the number of results) + 1 - the previous position. 

For example, if the website was not ranked for a given keyword on the previous comparison date, but now it ranks on the 35th position, with a search depth of 5 pages (50 results), the Net Gain will be 50 + 1 - 35 = 16.

If the website no longer ranks for a keyword (but it ranked on the previous comparison date), the Net Loss is calculated this way: search depth (expressed as the number of results) + 1 - previous position. For example, if the website ranked for a given keyword on the 49th position and it no longer ranks, with a search depth of 5 pages (50 results), the Net Loss will be 50 + 1 - 49 = 2.

Also see how Net Gain is being calculated. 

Do you have any other questions? Don’t hesitate to get in touch and we will keep building the FAQ.