$11k saving a year? Seems high. Are they assuming hot desking? The report cites a website (https://globalworkplaceanalytics.com/), but the page it cited does not have that number. I wonder how much digging it would take find out how that was calculated.
As a side note Global Workplace Analytics have gone for the bold design of white text on white background with a light grey drop shadow, so we know they are an innovative company. (Correction, it is white text on an autoplay video my browser blocked... still innovate)